Q: Is 1,961,680 a Composite Number?

Why is 1,961,680 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 1,961,680 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 31 35 40 56 62 70 80 112 113 124 140 155 217 226 248 280 310 434 452 496 560 565 620 791 868 904 1,085 1,130 1,240 1,582 1,736 1,808 2,170 2,260 2,480 3,164 3,472 3,503 3,955 4,340 4,520 6,328 7,006 7,910 8,680 9,040 12,656 14,012 15,820 17,360 17,515 24,521 28,024 31,640 35,030 49,042 56,048 63,280 70,060 98,084 122,605 140,120 196,168 245,210 280,240 392,336 490,420 980,840 and 1,961,680, with no remainder.

Since 1,961,680 cannot be divided by just 1 and 1,961,680, 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).