Q: Is 402,109 a Prime Number?
A: No, 402,109 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 402109 can be evenly divided by 1 23 17,483 and 402,109, with no remainder.
Since 402,109 cannot be divided by just 1 and 402,109, it is not a prime number.