Q: Is 961,521 a Prime Number?
A: No, 961,521 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 961521 can be evenly divided by 1 3 11 33 29,137 87,411 320,507 and 961,521, with no remainder.
Since 961,521 cannot be divided by just 1 and 961,521, it is not a prime number.