Q: Is 501,615 a Prime Number?
A: No, 501,615 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 501615 can be evenly divided by 1 3 5 9 15 45 71 157 213 355 471 639 785 1,065 1,413 2,355 3,195 7,065 11,147 33,441 55,735 100,323 167,205 and 501,615, with no remainder.
Since 501,615 cannot be divided by just 1 and 501,615, it is not a prime number.