Q: Is 3,627,721 a Prime Number?
A: No, 3,627,721 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 3627721 can be evenly divided by 1 23 41 943 3,847 88,481 157,727 and 3,627,721, with no remainder.
Since 3,627,721 cannot be divided by just 1 and 3,627,721, it is not a prime number.