Q: Is 1,720,422 a Prime Number?
A: No, 1,720,422 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 1720422 can be evenly divided by 1 2 3 6 9 11 18 22 33 66 99 198 8,689 17,378 26,067 52,134 78,201 95,579 156,402 191,158 286,737 573,474 860,211 and 1,720,422, with no remainder.
Since 1,720,422 cannot be divided by just 1 and 1,720,422, it is not a prime number.