Number 565 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 565 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 565 below).

Number of factors: 4.

List of factors/divisors: 1, 5, 113, 565.

Parity: 565 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 119 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 558 no | 559 no | 560 no | 561 no | 562 no | 563 yes | 564 no | 565 no | 566 no | 567 no | 568 no | 569 yes | 570 no | 571 yes | 572 no |
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