Q: Is 1,520,660 a Prime Number?
A: No, 1,520,660 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 1520660 can be evenly divided by 1 2 4 5 10 20 139 278 547 556 695 1,094 1,390 2,188 2,735 2,780 5,470 10,940 76,033 152,066 304,132 380,165 760,330 and 1,520,660, with no remainder.
Since 1,520,660 cannot be divided by just 1 and 1,520,660, it is not a prime number.