Q: Is 278,880 a Prime Number?
A: No, 278,880 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 278880 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 83 84 96 105 112 120 140 160 166 168 210 224 240 249 280 332 336 415 420 480 498 560 581 664 672 830 840 996 1,120 1,162 1,245 1,328 1,660 1,680 1,743 1,992 2,324 2,490 2,656 2,905 3,320 3,360 3,486 3,984 4,648 4,980 5,810 6,640 6,972 7,968 8,715 9,296 9,960 11,620 13,280 13,944 17,430 18,592 19,920 23,240 27,888 34,860 39,840 46,480 55,776 69,720 92,960 139,440 and 278,880, with no remainder.
Since 278,880 cannot be divided by just 1 and 278,880, it is not a prime number.