Q: Is 402,121 a Prime Number?
A: No, 402,121 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 402121 can be evenly divided by 1 163 2,467 and 402,121, with no remainder.
Since 402,121 cannot be divided by just 1 and 402,121, it is not a prime number.