Q: Is 628,530 a Prime Number?
A: No, 628,530 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 628530 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 35 41 42 70 73 82 105 123 146 205 210 219 246 287 365 410 438 511 574 615 730 861 1,022 1,095 1,230 1,435 1,533 1,722 2,190 2,555 2,870 2,993 3,066 4,305 5,110 5,986 7,665 8,610 8,979 14,965 15,330 17,958 20,951 29,930 41,902 44,895 62,853 89,790 104,755 125,706 209,510 314,265 and 628,530, with no remainder.
Since 628,530 cannot be divided by just 1 and 628,530, it is not a prime number.