Q: Is 1,218,370 a Prime Number?
A: No, 1,218,370 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 1218370 can be evenly divided by 1 2 5 10 73 146 365 730 1,669 3,338 8,345 16,690 121,837 243,674 609,185 and 1,218,370, with no remainder.
Since 1,218,370 cannot be divided by just 1 and 1,218,370, it is not a prime number.