Composite numbers room numbers with more than two factors. Numbers can be classified on the communication of the number of factors lock have. If a number has actually just two factors - 1 and also the number itself, climate it is a prime number. However, most numbers have an ext than two factors, and also they are called composite numbers. Top top this page, we will find out the difference in between prime and composite numbers, the the smallest composite number, and odd composite numbers. The critical one is interesting since there are numerous odd composite numbers, unequal 2, i m sorry is the only even prime number.

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1.What room Composite Numbers?
2.Properties that Composite Numbers
3.How to find Composite Numbers?
4.Types of Composite Numbers
5.Smallest Composite Number
6.FAQs ~ above Composite Numbers

What room Composite Numbers?

Composite numbers can be defined as organic numbers the have an ext than two factors. In other words, a number the is divisible by a number various other than 1 and the number itself, is referred to as a composite number. Let’s learn an ext about composite numbers with examples.

Examples the Composite Numbers

4, 6, 8, 9, and 10 room the first few composite numbers. Let's take it 4 and also 6. In the above example, 4 and also 6 are dubbed composite numbers because they room made by combining various other numbers. This idea is important and also we provided it in a theorem referred to as the fundamental Theorem that Arithmetic. Let's proceed to know the essential features that composite numbers.

Properties that Composite Numbers

A composite number is a optimistic integer that deserve to be developed by multiplying two smaller hopeful integers. Keep in mind the properties of a composite number noted below:

All composite numbers are evenly divisible by smaller numbers that can be prime or composite.Every composite number is consisted of of two or much more prime numbers.

Let us have a look at the nature of the composite number 72 in bespeak to understand the ide in a far better way.


This number shows that by multiply these positive integers we gain a composite number.

How to find Composite Numbers?

In order to discover a composite number, we discover the factors of the offered number. If the number has much more than 2 factors, climate it is composite. The best way to number out a composite number is to perform the divisibility test. The divisibility test helps united state to identify whether a number is a prime or a composite number. Divisibility way that a number is split evenly (with no remainder) by another number.

To perform this, check to see if the number can be divided by these common factors: 2, 3, 5, 7, 11, and 13. If the provided number is even, then begin checking v the number 2. If the number ends v a 0 or 5, then check it through 5. If the number can’t be split by any type of of these offered numbers, climate the number is a element number. Because that example, 68 is divisible by 2, which way it has factors other 보다 1 and 68, so, we deserve to say 68 is a composite number.

Types of Composite Numbers

The two main varieties of composite numbers in maths room odd composite numbers and even composite numbers. Let us have actually a look at the 2 of them individually:

Odd Composite Numbers

All the odd numbers which are not prime are odd composite numbers. For example, 9, 15, 21, 25, 27 are odd composite numbers. Consider the number 1, 2, 3, 4, 9, 10, 11, 12 and 15. Here 9 and also 15 room the weird composites due to the fact that these two numbers have odd divisors and also satisfy the composite condition.

Even Composite Numbers

All the also numbers which space not prime are also composite numbers. For example, 4, 6, 8, 10, 12, 14, 16, are also composite numbers. Consider the numbers 1, 2, 3, 4, 9, 10, 11, 12 and 15 again. Right here 4, 10, and also 12 are the also composites because they have even divisors and satisfy the composite condition.

Smallest Composite Number

A composite number is identified as a number that has actually divisors other than 1 and the number itself. Begin counting: 1, 2, 3, 4, 5, 6, .... So on. 1 is not a composite number since its single divisor is 1. 2 is not a composite number due to the fact that it has only two divisors, i.e., 1 and also the number 2 itself. 3 is no a composite number since it has actually only 2 divisors, i.e., 1 and the number 3 itself. Let’s look in ~ number 4. The divisors space 1, 2, and 4. Number 4 satisfies the criteria of a composite number. So, 4 is the the smallest composite number.

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Composite numbers Examples

Example 1: recognize whether 486 is a composite number or not?


The offered number is 486. Its components or divisors room - 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, and also 486. This shows that that has determinants other than 1 and also itself.

∴ 486 is a composite number.

Example 2: settle the complying with riddle: "I lie in between 30 and 40; I have actually only two prime factors. The sum of my prime factors is 5; who am I?" A composite number or a element number.


The sum of the prime components of this unknown number is 5. We understand that the prime numbers whose sum is 5 are 2 and 3. Now, we need to discover a number that has actually 2 and 3 as its just prime factors and also which lies between 30 and also 40. Let united state see the prime factorization of 36: 36 = 2 × 2 × 3 × 3. So, 36 satisfies the given conditions.

∴ 36 is the compelled number. That is a composite number.

Example 3: What is the product that the first five composite numbers?


To discover the product the the an initial five composite numbers let us an initial list out the composite numbers.

The an initial five composite numbers are 4, 6, 8, 9, 10

The product the the provided composite numbers = 4 × 6 × 8 × 9 × 10 = 17280

The product the the an initial five composite number is 17280.

Show solution >

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Practice inquiries on Composite Numbers

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FAQs ~ above Composite Numbers

What are Composite number in Math?

In math, numbers are the basic building blocks. Composite numbers room the varieties of numbers that have an ext than 2 factors. Because that example, number 6 is a composite number it has 1, 2, 3, and also 6 together its factors.

How to discover Composite Numbers?

To find whether a provided number is composite, we just discover the variety of factors that has. If it has more than 2 factors, then the number is composite. For example, 4 has three factors, 1, 2, and 4. So, the is a composite number.

Is 2 a Composite Number?

No, 2 is no a composite number, the is the only also prime number. A composite number has much more than 2 factors, various other than 1 and also the number itself. Here, 2 has actually only 2 factors, 1 and also 2 itself. Therefore, 2 is a element number.

What are the Composite Numbers in between 1 and also 100?

The composite numbers between 1 and 100 are-

4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.

What is a Composite Number and Prime Number?

A number the is divisible by a number other than 1 and also the number itself, is dubbed a composite number. Because that example, 4, 6 space composite numbers. Whereas, a number the is divisible only by 1 and also itself is called a prime number, like, 2, 3, and 5.

What is an Odd Composite Number?

All the odd numbers (excluding 1) which room not prime room odd composite numbers. For example, 9 and also 15 are the weird composite numbers.

What is the the smallest Composite Number?

A composite number has more than two factors, various other than 1 and the number itself. Here, 4 satisfies this condition, and also there is no other number smaller than 4 which is composite. Therefore, 4 is the smallest composite number.

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What is the Difference in between a Prime and a Composite Number?

A prime number has actually only two factors, 1 and also the number itself, whereas, a composite number has more than two factors. For example, 5 has only 2 factors, 1 and also 5, so the is a element number. Whereas 6 has 4 factors, 1, 2, 3, and 6, so it is a composite number.