Q: Is 646,142 a Prime Number?
A: No, 646,142 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 646142 can be evenly divided by 1 2 7 14 46,153 92,306 323,071 and 646,142, with no remainder.
Since 646,142 cannot be divided by just 1 and 646,142, it is not a prime number.