Q: Is 1,263,660 a Prime Number?
A: No, 1,263,660 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 1263660 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 21,061 42,122 63,183 84,244 105,305 126,366 210,610 252,732 315,915 421,220 631,830 and 1,263,660, with no remainder.
Since 1,263,660 cannot be divided by just 1 and 1,263,660, it is not a prime number.