Q: Is 3,661,021 a Prime Number?
A: No, 3,661,021 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 3661021 can be evenly divided by 1 7 13 91 40,231 281,617 523,003 and 3,661,021, with no remainder.
Since 3,661,021 cannot be divided by just 1 and 3,661,021, it is not a prime number.