Q: Is 278,108 a Prime Number?
A: No, 278,108 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 278108 can be evenly divided by 1 2 4 251 277 502 554 1,004 1,108 69,527 139,054 and 278,108, with no remainder.
Since 278,108 cannot be divided by just 1 and 278,108, it is not a prime number.