Q: Is 530,145 a Prime Number?
A: No, 530,145 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 530145 can be evenly divided by 1 3 5 7 9 11 15 17 21 27 33 35 45 51 55 63 77 81 85 99 105 119 135 153 165 187 189 231 255 297 315 357 385 405 459 495 561 567 595 693 765 891 935 945 1,071 1,155 1,309 1,377 1,485 1,683 1,785 2,079 2,295 2,805 2,835 3,213 3,465 3,927 4,455 5,049 5,355 6,237 6,545 6,885 8,415 9,639 10,395 11,781 15,147 16,065 19,635 25,245 31,185 35,343 48,195 58,905 75,735 106,029 176,715 and 530,145, with no remainder.
Since 530,145 cannot be divided by just 1 and 530,145, it is not a prime number.