### Short answer

The number **399,402 is NOT a PRIME** number.

#### How to check if the number 399,402 is a prime number

A prime number can be divided, without a remainder, only by itself and by 1. For example, 13 can be divided only by 13 and by 1. In this case, the number **399,402** that you looked for, **is NOT a PRIME number**, so it devides by **1,2, 3, 6, 9, 18, ** and of course **399,402**.