Q: Is 402,456 a Prime Number?
A: No, 402,456 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 402456 can be evenly divided by 1 2 3 4 6 8 12 24 41 82 123 164 246 328 409 492 818 984 1,227 1,636 2,454 3,272 4,908 9,816 16,769 33,538 50,307 67,076 100,614 134,152 201,228 and 402,456, with no remainder.
Since 402,456 cannot be divided by just 1 and 402,456, it is not a prime number.