Q: Is 402,140 a Prime Number?
A: No, 402,140 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 402140 can be evenly divided by 1 2 4 5 10 20 20,107 40,214 80,428 100,535 201,070 and 402,140, with no remainder.
Since 402,140 cannot be divided by just 1 and 402,140, it is not a prime number.