Q: Is 109,431 a Prime Number?
A: No, 109,431 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 109431 can be evenly divided by 1 3 7 9 21 27 63 81 189 193 567 579 1,351 1,737 4,053 5,211 12,159 15,633 36,477 and 109,431, with no remainder.
Since 109,431 cannot be divided by just 1 and 109,431, it is not a prime number.