Q: Is 12,129 a Prime Number?
A: No, 12,129 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 12129 can be evenly divided by 1 3 13 39 311 933 4,043 and 12,129, with no remainder.
Since 12,129 cannot be divided by just 1 and 12,129, it is not a prime number.