Q: Is 279,980 a Prime Number?
A: No, 279,980 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 279980 can be evenly divided by 1 2 4 5 10 20 13,999 27,998 55,996 69,995 139,990 and 279,980, with no remainder.
Since 279,980 cannot be divided by just 1 and 279,980, it is not a prime number.