Q: Is 145,530 a Prime Number?
A: No, 145,530 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 145530 can be evenly divided by 1 2 3 5 6 7 9 10 11 14 15 18 21 22 27 30 33 35 42 45 49 54 55 63 66 70 77 90 98 99 105 110 126 135 147 154 165 189 198 210 231 245 270 294 297 315 330 378 385 441 462 490 495 539 594 630 693 735 770 882 945 990 1,078 1,155 1,323 1,386 1,470 1,485 1,617 1,890 2,079 2,205 2,310 2,646 2,695 2,970 3,234 3,465 4,158 4,410 4,851 5,390 6,615 6,930 8,085 9,702 10,395 13,230 14,553 16,170 20,790 24,255 29,106 48,510 72,765 and 145,530, with no remainder.
Since 145,530 cannot be divided by just 1 and 145,530, it is not a prime number.