Q: Is 423,402 a Prime Number?
A: No, 423,402 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 423402 can be evenly divided by 1 2 3 6 7 14 17 21 34 42 51 102 119 238 357 593 714 1,186 1,779 3,558 4,151 8,302 10,081 12,453 20,162 24,906 30,243 60,486 70,567 141,134 211,701 and 423,402, with no remainder.
Since 423,402 cannot be divided by just 1 and 423,402, it is not a prime number.