Q: Is 561,964 a Prime Number?
A: No, 561,964 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 561964 can be evenly divided by 1 2 4 13 26 52 101 107 202 214 404 428 1,313 1,391 2,626 2,782 5,252 5,564 10,807 21,614 43,228 140,491 280,982 and 561,964, with no remainder.
Since 561,964 cannot be divided by just 1 and 561,964, it is not a prime number.