Q: Is 1,604,961 a Prime Number?
A: No, 1,604,961 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 1604961 can be evenly divided by 1 3 9 27 59,443 178,329 534,987 and 1,604,961, with no remainder.
Since 1,604,961 cannot be divided by just 1 and 1,604,961, it is not a prime number.