Q: Is 243,998 a Prime Number?
A: No, 243,998 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 243998 can be evenly divided by 1 2 19 38 6,421 12,842 121,999 and 243,998, with no remainder.
Since 243,998 cannot be divided by just 1 and 243,998, it is not a prime number.