Q: Is 531,401 a Prime Number?
A: No, 531,401 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 531401 can be evenly divided by 1 13 41 533 997 12,961 40,877 and 531,401, with no remainder.
Since 531,401 cannot be divided by just 1 and 531,401, it is not a prime number.