Q: Is 680,680 a Composite Number?

Why is 680,680 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 680,680 can be evenly divided by 1 2 4 5 7 8 10 11 13 14 17 20 22 26 28 34 35 40 44 52 55 56 65 68 70 77 85 88 91 104 110 119 130 136 140 143 154 170 182 187 220 221 238 260 280 286 308 340 364 374 385 440 442 455 476 520 572 595 616 680 715 728 748 770 884 910 935 952 1,001 1,105 1,144 1,190 1,309 1,430 1,496 1,540 1,547 1,768 1,820 1,870 2,002 2,210 2,380 2,431 2,618 2,860 3,080 3,094 3,640 3,740 4,004 4,420 4,760 4,862 5,005 5,236 5,720 6,188 6,545 7,480 7,735 8,008 8,840 9,724 10,010 10,472 12,155 12,376 13,090 15,470 17,017 19,448 20,020 24,310 26,180 30,940 34,034 40,040 48,620 52,360 61,880 68,068 85,085 97,240 136,136 170,170 340,340 and 680,680, with no remainder.

Since 680,680 cannot be divided by just 1 and 680,680, 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).