Q: Is 2,166,741 a Prime Number?
A: No, 2,166,741 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 2166741 can be evenly divided by 1 3 9 19 57 171 12,671 38,013 114,039 240,749 722,247 and 2,166,741, with no remainder.
Since 2,166,741 cannot be divided by just 1 and 2,166,741, it is not a prime number.