Q: Is 1,518,318 a Prime Number?
A: No, 1,518,318 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 1518318 can be evenly divided by 1 2 3 6 9 18 27 31 54 62 93 186 279 558 837 907 1,674 1,814 2,721 5,442 8,163 16,326 24,489 28,117 48,978 56,234 84,351 168,702 253,053 506,106 759,159 and 1,518,318, with no remainder.
Since 1,518,318 cannot be divided by just 1 and 1,518,318, it is not a prime number.