Q: Is 1,311,918 a Prime Number?
A: No, 1,311,918 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 1311918 can be evenly divided by 1 2 3 6 41 82 123 246 5,333 10,666 15,999 31,998 218,653 437,306 655,959 and 1,311,918, with no remainder.
Since 1,311,918 cannot be divided by just 1 and 1,311,918, it is not a prime number.