Q: Is 12,243 a Prime Number?
A: No, 12,243 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 12243 can be evenly divided by 1 3 7 11 21 33 53 77 159 231 371 583 1,113 1,749 4,081 and 12,243, with no remainder.
Since 12,243 cannot be divided by just 1 and 12,243, it is not a prime number.