Q: Is 128,427 a Prime Number?
A: No, 128,427 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 128427 can be evenly divided by 1 3 13 37 39 89 111 267 481 1,157 1,443 3,293 3,471 9,879 42,809 and 128,427, with no remainder.
Since 128,427 cannot be divided by just 1 and 128,427, it is not a prime number.