Q: Is 518,432 a Prime Number?
A: No, 518,432 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 518432 can be evenly divided by 1 2 4 8 16 17 32 34 68 136 272 544 953 1,906 3,812 7,624 15,248 16,201 30,496 32,402 64,804 129,608 259,216 and 518,432, with no remainder.
Since 518,432 cannot be divided by just 1 and 518,432, it is not a prime number.