Is 115 a Prime Number?

Is 115 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 115 a prime number? According to the definition mentioned above, we can say "No, 115 is not a prime number." Now let us take a look at the detailed solution of why is 115 a prime number or a composite number?

• Is 115 a prime number? - No
• Is 115 a composite number? - Yes
• Factors of 115 - 1, 5, 23, 115
• Is 115 a perfect square? - No
• Prime Factors of 115 - 5, 23

Is 115 a Prime Number?

No, 115 is not a prime number. The number 115 is divisible by 1, 5, 23, 115. For a number to be classified as a prime number, it should have exactly two factors. Since 115 has more than two factors, i.e. 1, 5, 23, 115, it is not a prime number.

Why is 115 not a Prime Number?

To understand whether 115 is composite or prime, it is important to find its factors.

Factors of 115: 1, 5, 23, 115

Since 115 has more than 2 factors, we can say that 115 is not a prime number.

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Is 115 a Composite Number?

Yes, since 115 has more than two factors i.e. 1, 5, 23, 115. In other words, 115 is a composite number because 115 has more than 2 factors.

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Fun Facts:

• A semiprime number is a composite number that is the product of exactly two prime numbers. Example - 115 is semiprime, since 115 can be written as 5 × 23.
• A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (311, 313) are twin prime numbers.
• 23 is the smallest prime number having consecutive digits.

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