Q: Is 1,720,245 a Prime Number?
A: No, 1,720,245 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 1720245 can be evenly divided by 1 3 5 15 73 219 365 1,095 1,571 4,713 7,855 23,565 114,683 344,049 573,415 and 1,720,245, with no remainder.
Since 1,720,245 cannot be divided by just 1 and 1,720,245, it is not a prime number.