Q: Is 712,420 a Prime Number?
A: No, 712,420 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 712420 can be evenly divided by 1 2 4 5 10 20 179 199 358 398 716 796 895 995 1,790 1,990 3,580 3,980 35,621 71,242 142,484 178,105 356,210 and 712,420, with no remainder.
Since 712,420 cannot be divided by just 1 and 712,420, it is not a prime number.