Number 357 is not a prime number. It is a composite number.

A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. We do not consider 357 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 357 below).

Number of factors: 8.

List of factors/divisors: 1, 3, 7, 17, 21, 51, 119, 357.

Parity: 357 is an odd number.

Perfect square: no (a square number or perfect square is an integer that is the square of an integer).

Perfect number: no, because the sum of its proper divisors is 219 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 350 no | 351 no | 352 no | 353 yes | 354 no | 355 no | 356 no | 357 no | 358 no | 359 yes | 360 no | 361 no | 362 no | 363 no | 364 no |
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