Q: Is 1,400,518 a Prime Number?
A: No, 1,400,518 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 1400518 can be evenly divided by 1 2 7 14 31 49 62 98 217 434 461 922 1,519 3,038 3,227 6,454 14,291 22,589 28,582 45,178 100,037 200,074 700,259 and 1,400,518, with no remainder.
Since 1,400,518 cannot be divided by just 1 and 1,400,518, it is not a prime number.