Q: Is 518,220 a Prime Number?
A: No, 518,220 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 518220 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2,879 5,758 8,637 11,516 14,395 17,274 25,911 28,790 34,548 43,185 51,822 57,580 86,370 103,644 129,555 172,740 259,110 and 518,220, with no remainder.
Since 518,220 cannot be divided by just 1 and 518,220, it is not a prime number.