Number 870 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 870 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 870 below).

Number of factors: 16.

List of factors/divisors: 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870.

Parity: 870 is an even number. It means it is divisible by 2 with no remainder.

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 1290 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 863 yes | 864 no | 865 no | 866 no | 867 no | 868 no | 869 no | 870 no | 871 no | 872 no | 873 no | 874 no | 875 no | 876 no | 877 yes |
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