Q: Is 671,887 a Prime Number?
A: Yes, 671,887 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 671887 can be evenly divided by 1 and 671,887, with no remainder.
Since 671,887 can be divided by just 1 and 671,887, it is a prime number.