Q: Is 1,218,678 a Prime Number?
A: No, 1,218,678 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 1218678 can be evenly divided by 1 2 3 6 23 46 69 138 8,831 17,662 26,493 52,986 203,113 406,226 609,339 and 1,218,678, with no remainder.
Since 1,218,678 cannot be divided by just 1 and 1,218,678, it is not a prime number.