Q: Is 1,518,216 a Prime Number?
A: No, 1,518,216 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 1518216 can be evenly divided by 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 147 168 196 294 392 588 1,176 1,291 2,582 3,873 5,164 7,746 9,037 10,328 15,492 18,074 27,111 30,984 36,148 54,222 63,259 72,296 108,444 126,518 189,777 216,888 253,036 379,554 506,072 759,108 and 1,518,216, with no remainder.
Since 1,518,216 cannot be divided by just 1 and 1,518,216, it is not a prime number.