Q: Is 1,377,631 a Prime Number?
A: No, 1,377,631 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 1377631 can be evenly divided by 1 23 89 673 2,047 15,479 59,897 and 1,377,631, with no remainder.
Since 1,377,631 cannot be divided by just 1 and 1,377,631, it is not a prime number.