Q: Is 1,957,221 a Prime Number?
A: No, 1,957,221 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 1957221 can be evenly divided by 1 3 7 9 21 47 63 141 329 423 661 987 1,983 2,961 4,627 5,949 13,881 31,067 41,643 93,201 217,469 279,603 652,407 and 1,957,221, with no remainder.
Since 1,957,221 cannot be divided by just 1 and 1,957,221, it is not a prime number.