Q: Is 243,918 a Prime Number?
A: No, 243,918 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 243918 can be evenly divided by 1 2 3 6 9 18 27 54 4,517 9,034 13,551 27,102 40,653 81,306 121,959 and 243,918, with no remainder.
Since 243,918 cannot be divided by just 1 and 243,918, it is not a prime number.