Q: Is 1,366,755 a Prime Number?
A: No, 1,366,755 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 1366755 can be evenly divided by 1 3 5 13 15 39 43 65 129 163 195 215 489 559 645 815 1,677 2,119 2,445 2,795 6,357 7,009 8,385 10,595 21,027 31,785 35,045 91,117 105,135 273,351 455,585 and 1,366,755, with no remainder.
Since 1,366,755 cannot be divided by just 1 and 1,366,755, it is not a prime number.