Q: Is 278,488 a Prime Number?
A: No, 278,488 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 278488 can be evenly divided by 1 2 4 7 8 14 28 56 4,973 9,946 19,892 34,811 39,784 69,622 139,244 and 278,488, with no remainder.
Since 278,488 cannot be divided by just 1 and 278,488, it is not a prime number.