Q: Is 1,220,740 a Prime Number?
A: No, 1,220,740 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 1220740 can be evenly divided by 1 2 4 5 10 20 67 134 268 335 670 911 1,340 1,822 3,644 4,555 9,110 18,220 61,037 122,074 244,148 305,185 610,370 and 1,220,740, with no remainder.
Since 1,220,740 cannot be divided by just 1 and 1,220,740, it is not a prime number.