Q: Is 43,431 a Prime Number?
A: No, 43,431 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 43431 can be evenly divided by 1 3 31 93 467 1,401 14,477 and 43,431, with no remainder.
Since 43,431 cannot be divided by just 1 and 43,431, it is not a prime number.