Q: Is 279,420 a Prime Number?
A: No, 279,420 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 279420 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 4,657 9,314 13,971 18,628 23,285 27,942 46,570 55,884 69,855 93,140 139,710 and 279,420, with no remainder.
Since 279,420 cannot be divided by just 1 and 279,420, it is not a prime number.