Q: Is 262,431 a Prime Number?
A: No, 262,431 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 262431 can be evenly divided by 1 3 9 13 39 117 2,243 6,729 20,187 29,159 87,477 and 262,431, with no remainder.
Since 262,431 cannot be divided by just 1 and 262,431, it is not a prime number.