Q: Is 646,402 a Prime Number?
A: No, 646,402 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 646402 can be evenly divided by 1 2 323,201 and 646,402, with no remainder.
Since 646,402 cannot be divided by just 1 and 646,402, it is not a prime number.