Q: Is 278,504 a Prime Number?
A: No, 278,504 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 278504 can be evenly divided by 1 2 4 8 31 62 124 248 1,123 2,246 4,492 8,984 34,813 69,626 139,252 and 278,504, with no remainder.
Since 278,504 cannot be divided by just 1 and 278,504, it is not a prime number.