Q: Is 673,420 a Prime Number?
A: No, 673,420 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 673420 can be evenly divided by 1 2 4 5 10 11 20 22 44 55 110 220 3,061 6,122 12,244 15,305 30,610 33,671 61,220 67,342 134,684 168,355 336,710 and 673,420, with no remainder.
Since 673,420 cannot be divided by just 1 and 673,420, it is not a prime number.