Is 153 a Prime Number?

Is 153 a prime number? If a number has only two factors, i.e. 1 and the number itself, it is known as a prime number. In contrast, composite numbers have more than two factors. By this explanation, can we answer the question - is 153 a prime number? According to the definition mentioned above, we can say "No, 153 is not a prime number." Now let us take a look at the detailed solution of why is 153 a prime number or a composite number?

• Is 153 a prime number? - No
• Is 153 a composite number? - Yes
• Prime Factors of 153 - 3, 17
• Is 153 a perfect square? - No
• Factors of 153 - 1, 3, 9, 17, 51, 153

Is 153 a Prime Number?

No, 153 is not a prime number. The number 153 is divisible by 1, 3, 9, 17, 51, 153. For a number to be classified as a prime number, it should have exactly two factors. Since 153 has more than two factors, i.e. 1, 3, 9, 17, 51, 153, it is not a prime number.

Why is 153 not a Prime Number?

To understand whether 153 is composite or prime, it is important to find its factors.

Factors of 153: 1, 3, 9, 17, 51, 153

Since 153 has more than 2 factors, we can say that 153 is not a prime number.

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Is 153 a Composite Number?

Yes, since 153 has more than two factors i.e. 1, 3, 9, 17, 51, 153. In other words, 153 is a composite number because 153 has more than 2 factors.

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Fun Facts:

• 23 is the smallest prime number having consecutive digits.
• A palindrome prime is a prime number that when read in reverse order results in the same number. Examples - 10601, 11311, 12421
• 5 is the only prime number having the last digit as 5.

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