Q: Is 279,880 a Prime Number?
A: No, 279,880 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 279880 can be evenly divided by 1 2 4 5 8 10 20 40 6,997 13,994 27,988 34,985 55,976 69,970 139,940 and 279,880, with no remainder.
Since 279,880 cannot be divided by just 1 and 279,880, it is not a prime number.