Q: Is 3,720,221 a Prime Number?
A: No, 3,720,221 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 3720221 can be evenly divided by 1 293 12,697 and 3,720,221, with no remainder.
Since 3,720,221 cannot be divided by just 1 and 3,720,221, it is not a prime number.