Q: Is 1,720,328 a Prime Number?
A: No, 1,720,328 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 1720328 can be evenly divided by 1 2 4 8 359 599 718 1,198 1,436 2,396 2,872 4,792 215,041 430,082 860,164 and 1,720,328, with no remainder.
Since 1,720,328 cannot be divided by just 1 and 1,720,328, it is not a prime number.