Q: Is 2,646,840 a Composite Number?

Why is 2,646,840 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 2,646,840 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 23 24 28 30 35 40 42 46 56 60 69 70 84 92 105 115 120 137 138 140 161 168 184 210 230 274 276 280 322 345 411 420 460 483 548 552 644 685 690 805 822 840 920 959 966 1,096 1,288 1,370 1,380 1,610 1,644 1,918 1,932 2,055 2,415 2,740 2,760 2,877 3,151 3,220 3,288 3,836 3,864 4,110 4,795 4,830 5,480 5,754 6,302 6,440 7,672 8,220 9,453 9,590 9,660 11,508 12,604 14,385 15,755 16,440 18,906 19,180 19,320 22,057 23,016 25,208 28,770 31,510 37,812 38,360 44,114 47,265 57,540 63,020 66,171 75,624 88,228 94,530 110,285 115,080 126,040 132,342 176,456 189,060 220,570 264,684 330,855 378,120 441,140 529,368 661,710 882,280 1,323,420 and 2,646,840, with no remainder.

Since 2,646,840 cannot be divided by just 1 and 2,646,840, 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).