Q: Is 278,875 a Prime Number?
A: No, 278,875 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 278875 can be evenly divided by 1 5 23 25 97 115 125 485 575 2,231 2,425 2,875 11,155 12,125 55,775 and 278,875, with no remainder.
Since 278,875 cannot be divided by just 1 and 278,875, it is not a prime number.