Q: Is 12,557 a Prime Number?
A: No, 12,557 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 12557 can be evenly divided by 1 29 433 and 12,557, with no remainder.
Since 12,557 cannot be divided by just 1 and 12,557, it is not a prime number.