Q: Is 501,666 a Prime Number?
A: No, 501,666 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 501666 can be evenly divided by 1 2 3 6 11 22 33 66 121 242 363 691 726 1,382 2,073 4,146 7,601 15,202 22,803 45,606 83,611 167,222 250,833 and 501,666, with no remainder.
Since 501,666 cannot be divided by just 1 and 501,666, it is not a prime number.