Q: Is 842,490 a Prime Number?
A: No, 842,490 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 842490 can be evenly divided by 1 2 3 5 6 9 10 11 15 18 22 23 30 33 37 45 46 55 66 69 74 90 99 110 111 115 138 165 185 198 207 222 230 253 330 333 345 370 407 414 495 506 555 666 690 759 814 851 990 1,035 1,110 1,221 1,265 1,518 1,665 1,702 2,035 2,070 2,277 2,442 2,530 2,553 3,330 3,663 3,795 4,070 4,255 4,554 5,106 6,105 7,326 7,590 7,659 8,510 9,361 11,385 12,210 12,765 15,318 18,315 18,722 22,770 25,530 28,083 36,630 38,295 46,805 56,166 76,590 84,249 93,610 140,415 168,498 280,830 421,245 and 842,490, with no remainder.
Since 842,490 cannot be divided by just 1 and 842,490, it is not a prime number.