Q: Is 743,420 a Prime Number?
A: No, 743,420 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 743420 can be evenly divided by 1 2 4 5 10 20 37,171 74,342 148,684 185,855 371,710 and 743,420, with no remainder.
Since 743,420 cannot be divided by just 1 and 743,420, it is not a prime number.