Q: Is 1,218,264 a Prime Number?
A: No, 1,218,264 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 1218264 can be evenly divided by 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 2,207 4,414 6,621 8,828 13,242 17,656 26,484 50,761 52,968 101,522 152,283 203,044 304,566 406,088 609,132 and 1,218,264, with no remainder.
Since 1,218,264 cannot be divided by just 1 and 1,218,264, it is not a prime number.