Q: Is 518,556 a Prime Number?
A: No, 518,556 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 518556 can be evenly divided by 1 2 3 4 6 12 79 158 237 316 474 547 948 1,094 1,641 2,188 3,282 6,564 43,213 86,426 129,639 172,852 259,278 and 518,556, with no remainder.
Since 518,556 cannot be divided by just 1 and 518,556, it is not a prime number.