Is 180 a Prime Number?

Is 180 a prime number? Numbers having only 2 factors, i.e. 1 and the number itself are known as prime numbers whereas numbers with more than 2 factors are known as composite. The answer to the question whether 180 is a prime or composite is - "180 is a composite number." Now, let us find out how and why is 180 a prime number or a composite number?

• Is 180 a prime number? - No
• Is 180 a composite number? - Yes
• Factors of 180 - 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
• Prime Factors of 180 - 2, 3, 5
• Is 180 a perfect square? - No

Is 180 a Prime Number?

No, 180 is not a prime number. The number 180 is divisible by 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180. For a number to be classified as a prime number, it should have exactly two factors. Since 180 has more than two factors, i.e. 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, it is not a prime number.

Why is 180 not a Prime Number?

To understand whether 180 is prime or composite, it is important to find its factors.

Factors of 180: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180

Since 180 has more than 2 factors, we can say that 180 is not a prime number.

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Is 180 a Composite Number?

Yes, since 180 has more than two factors i.e. 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180. In other words, 180 is a composite number because 180 has more than 2 factors.

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Fun Facts:

• 1 is neither prime nor composite.
• 23 is the smallest prime number having consecutive digits.
• A perfect square (square number) is always a composite number.

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