Q: Is 120,423 a Prime Number?
A: No, 120,423 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 120423 can be evenly divided by 1 3 137 293 411 879 40,141 and 120,423, with no remainder.
Since 120,423 cannot be divided by just 1 and 120,423, it is not a prime number.