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Is 357 a Prime Number?

Is 357 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 357 is a prime or composite is - "357 is a composite number." Now, let us find out how and why is 357 a prime number or a composite number?

  • Is 357 a prime number? - No
  • Is 357 a composite number? - Yes
  • Is 357 a perfect square? - No
  • Factors of 357 - 1, 3, 7, 17, 21, 51, 119, 357
  • Prime Factors of 357 - 3, 7, 17

Is 357 a Prime or Composite?

Is 357 a Prime Number?

No, 357 is not a prime number. The number 357 is divisible by 1, 3, 7, 17, 21, 51, 119, 357. For a number to be classified as a prime number, it should have exactly two factors. Since 357 has more than two factors, i.e. 1, 3, 7, 17, 21, 51, 119, 357, it is not a prime number.

Is 357 a Prime Number?

Why is 357 not a Prime Number?

To understand whether 357 is prime or composite, it is important to find its factors.

Factors of 357: 1, 3, 7, 17, 21, 51, 119, 357

Since 357 has more than 2 factors, we can say that 357 is not a prime number.

☛ Prime Number Calculator

Is 357 a Composite Number?

Yes, since 357 has more than two factors i.e. 1, 3, 7, 17, 21, 51, 119, 357. In other words, 357 is a composite number because 357 has more than 2 factors.

Problem Statements:

Is 357 a Prime Number? No
Is 357 a Composite Number? Yes
Cube Root of 357 7.093957
Is 357 an Odd Number? Yes
Is 357 a Perfect Cube? No
Multiples of 357 357, 714, 1071, 1428, 1785, 2142, 2499, 2856, 3213, 3570
Square Root of 357 18.894444
Is 357 an Even Number? No
Square of 357 127449
Is 357 a Perfect Square? No

Fun Facts:

  • Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Example - 71 is a prime number and it can be written as 71 = 6 × 12 - 1
  • 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.
  • A palindrome prime is a prime number that when read in reverse order results in the same number. Examples - 10601, 11311, 12421

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