Q: Is 840,427 a Prime Number?
A: No, 840,427 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 840427 can be evenly divided by 1 7 19 71 89 133 497 623 1,349 1,691 6,319 9,443 11,837 44,233 120,061 and 840,427, with no remainder.
Since 840,427 cannot be divided by just 1 and 840,427, it is not a prime number.