Q: Is 278,498 a Prime Number?
A: No, 278,498 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 278498 can be evenly divided by 1 2 11 22 12,659 25,318 139,249 and 278,498, with no remainder.
Since 278,498 cannot be divided by just 1 and 278,498, it is not a prime number.