Number 669 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 669 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 669 below).

Number of factors: 4.

List of factors/divisors: 1, 3, 223, 669.

Parity: 669 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 227 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 662 no | 663 no | 664 no | 665 no | 666 no | 667 no | 668 no | 669 no | 670 no | 671 no | 672 no | 673 yes | 674 no | 675 no | 676 no |
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