Q: Is 12,155 a Prime Number?
A: No, 12,155 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 12155 can be evenly divided by 1 5 11 13 17 55 65 85 143 187 221 715 935 1,105 2,431 and 12,155, with no remainder.
Since 12,155 cannot be divided by just 1 and 12,155, it is not a prime number.