Q: Is 556,580 a Prime Number?
A: No, 556,580 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 556580 can be evenly divided by 1 2 4 5 10 17 20 34 68 85 170 340 1,637 3,274 6,548 8,185 16,370 27,829 32,740 55,658 111,316 139,145 278,290 and 556,580, with no remainder.
Since 556,580 cannot be divided by just 1 and 556,580, it is not a prime number.