Q: Is 842,639 a Prime Number?
A: No, 842,639 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 842639 can be evenly divided by 1 7 17 73 97 119 511 679 1,241 1,649 7,081 8,687 11,543 49,567 120,377 and 842,639, with no remainder.
Since 842,639 cannot be divided by just 1 and 842,639, it is not a prime number.