Q: Is 279,975 a Prime Number?
A: No, 279,975 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 279975 can be evenly divided by 1 3 5 15 25 75 3,733 11,199 18,665 55,995 93,325 and 279,975, with no remainder.
Since 279,975 cannot be divided by just 1 and 279,975, it is not a prime number.