Q: Is 556,720 a Prime Number?
A: No, 556,720 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 556720 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 6,959 13,918 27,836 34,795 55,672 69,590 111,344 139,180 278,360 and 556,720, with no remainder.
Since 556,720 cannot be divided by just 1 and 556,720, it is not a prime number.