Q: Is 805,140 a Prime Number?
A: No, 805,140 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 805140 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 71 81 84 90 105 108 126 135 140 142 162 180 189 210 213 252 270 284 315 324 355 378 405 420 426 497 540 567 630 639 710 756 810 852 945 994 1,065 1,134 1,260 1,278 1,420 1,491 1,620 1,890 1,917 1,988 2,130 2,268 2,485 2,556 2,835 2,982 3,195 3,780 3,834 4,260 4,473 4,970 5,670 5,751 5,964 6,390 7,455 7,668 8,946 9,585 9,940 11,340 11,502 12,780 13,419 14,910 17,892 19,170 22,365 23,004 26,838 28,755 29,820 38,340 40,257 44,730 53,676 57,510 67,095 80,514 89,460 115,020 134,190 161,028 201,285 268,380 402,570 and 805,140, with no remainder.
Since 805,140 cannot be divided by just 1 and 805,140, it is not a prime number.