Q: Is 45,243 a Prime Number?
A: No, 45,243 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 45243 can be evenly divided by 1 3 9 11 33 99 457 1,371 4,113 5,027 15,081 and 45,243, with no remainder.
Since 45,243 cannot be divided by just 1 and 45,243, it is not a prime number.