Q: Is 840,401 a Prime Number?
A: No, 840,401 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 840401 can be evenly divided by 1 643 1,307 and 840,401, with no remainder.
Since 840,401 cannot be divided by just 1 and 840,401, it is not a prime number.