Q: Is 278,494 a Prime Number?
A: No, 278,494 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 278494 can be evenly divided by 1 2 17 34 8,191 16,382 139,247 and 278,494, with no remainder.
Since 278,494 cannot be divided by just 1 and 278,494, it is not a prime number.