Q: Is 243,885 a Prime Number?
A: No, 243,885 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 243885 can be evenly divided by 1 3 5 15 71 213 229 355 687 1,065 1,145 3,435 16,259 48,777 81,295 and 243,885, with no remainder.
Since 243,885 cannot be divided by just 1 and 243,885, it is not a prime number.