Q: Is 673,421 a Prime Number?
A: No, 673,421 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 673421 can be evenly divided by 1 7 17 119 5,659 39,613 96,203 and 673,421, with no remainder.
Since 673,421 cannot be divided by just 1 and 673,421, it is not a prime number.