Q: Is 12,428 a Prime Number?
A: No, 12,428 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 12428 can be evenly divided by 1 2 4 13 26 52 239 478 956 3,107 6,214 and 12,428, with no remainder.
Since 12,428 cannot be divided by just 1 and 12,428, it is not a prime number.