Q: Is 8,621,440 a Composite Number?

Why is 8,621,440 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 8,621,440 can be evenly divided by 1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 128 152 160 190 304 320 380 608 640 709 760 1,216 1,418 1,520 2,432 2,836 3,040 3,545 5,672 6,080 7,090 11,344 12,160 13,471 14,180 22,688 26,942 28,360 45,376 53,884 56,720 67,355 90,752 107,768 113,440 134,710 215,536 226,880 269,420 431,072 453,760 538,840 862,144 1,077,680 1,724,288 2,155,360 4,310,720 and 8,621,440, with no remainder.

Since 8,621,440 cannot be divided by just 1 and 8,621,440, 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).