Number 445 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 445 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 445 below).

Number of factors: 4.

List of factors/divisors: 1, 5, 89, 445.

Parity: 445 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 95 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 438 no | 439 yes | 440 no | 441 no | 442 no | 443 yes | 444 no | 445 no | 446 no | 447 no | 448 no | 449 yes | 450 no | 451 no | 452 no |
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