Q: Is 331,401 a Prime Number?
A: No, 331,401 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 331401 can be evenly divided by 1 3 7 21 43 129 301 367 903 1,101 2,569 7,707 15,781 47,343 110,467 and 331,401, with no remainder.
Since 331,401 cannot be divided by just 1 and 331,401, it is not a prime number.