Q: Is 1,166,628 a Prime Number?
A: No, 1,166,628 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 1166628 can be evenly divided by 1 2 3 4 6 12 191 382 509 573 764 1,018 1,146 1,527 2,036 2,292 3,054 6,108 97,219 194,438 291,657 388,876 583,314 and 1,166,628, with no remainder.
Since 1,166,628 cannot be divided by just 1 and 1,166,628, it is not a prime number.