Q: Is 1,340,820 a Prime Number?
A: No, 1,340,820 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 1340820 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 191 195 234 260 270 351 382 390 468 540 573 585 702 764 780 955 1,146 1,170 1,404 1,719 1,755 1,910 2,292 2,340 2,483 2,865 3,438 3,510 3,820 4,966 5,157 5,730 6,876 7,020 7,449 8,595 9,932 10,314 11,460 12,415 14,898 17,190 20,628 22,347 24,830 25,785 29,796 34,380 37,245 44,694 49,660 51,570 67,041 74,490 89,388 103,140 111,735 134,082 148,980 223,470 268,164 335,205 446,940 670,410 and 1,340,820, with no remainder.
Since 1,340,820 cannot be divided by just 1 and 1,340,820, it is not a prime number.