Q: Is 1,606,671 a Prime Number?
A: No, 1,606,671 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 1606671 can be evenly divided by 1 3 9 11 33 99 16,229 48,687 146,061 178,519 535,557 and 1,606,671, with no remainder.
Since 1,606,671 cannot be divided by just 1 and 1,606,671, it is not a prime number.