Q: Is 78,902,880 a Composite Number?

Why is 78,902,880 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 78,902,880 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 23 24 28 30 32 35 40 42 46 48 56 60 69 70 80 84 92 96 105 112 115 120 138 140 160 161 168 184 210 224 230 240 276 280 322 336 345 368 420 460 480 483 552 560 644 672 690 736 805 840 920 966 1,021 1,104 1,120 1,288 1,380 1,610 1,680 1,840 1,932 2,042 2,208 2,415 2,576 2,760 3,063 3,220 3,360 3,680 3,864 4,084 4,830 5,105 5,152 5,520 6,126 6,440 7,147 7,728 8,168 9,660 10,210 11,040 12,252 12,880 14,294 15,315 15,456 16,336 19,320 20,420 21,441 23,483 24,504 25,760 28,588 30,630 32,672 35,735 38,640 40,840 42,882 46,966 49,008 57,176 61,260 70,449 71,470 77,280 81,680 85,764 93,932 98,016 107,205 114,352 117,415 122,520 140,898 142,940 163,360 164,381 171,528 187,864 214,410 228,704 234,830 245,040 281,796 285,880 328,762 343,056 352,245 375,728 428,820 469,660 490,080 493,143 563,592 571,760 657,524 686,112 704,490 751,456 821,905 857,640 939,320 986,286 1,127,184 1,143,520 1,315,048 1,408,980 1,643,810 1,715,280 1,878,640 1,972,572 2,254,368 2,465,715 2,630,096 2,817,960 3,287,620 3,430,560 3,757,280 3,945,144 4,931,430 5,260,192 5,635,920 6,575,240 7,890,288 9,862,860 11,271,840 13,150,480 15,780,576 19,725,720 26,300,960 39,451,440 and 78,902,880, with no remainder.

Since 78,902,880 cannot be divided by just 1 and 78,902,880, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).