Q: Is 5,491,566 a Prime Number?
A: No, 5,491,566 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 5491566 can be evenly divided by 1 2 3 6 9 18 71 142 213 426 639 1,278 4,297 8,594 12,891 25,782 38,673 77,346 305,087 610,174 915,261 1,830,522 2,745,783 and 5,491,566, with no remainder.
Since 5,491,566 cannot be divided by just 1 and 5,491,566, it is not a prime number.