Q: Is 721,401 a Prime Number?
A: No, 721,401 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 721401 can be evenly divided by 1 3 31 93 7,757 23,271 240,467 and 721,401, with no remainder.
Since 721,401 cannot be divided by just 1 and 721,401, it is not a prime number.