Q: Is 6,781,440 a Composite Number?

Why is 6,781,440 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 6,781,440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 883 960 1,280 1,536 1,766 1,920 2,560 2,649 3,532 3,840 4,415 5,298 7,064 7,680 8,830 10,596 13,245 14,128 17,660 21,192 26,490 28,256 35,320 42,384 52,980 56,512 70,640 84,768 105,960 113,024 141,280 169,536 211,920 226,048 282,560 339,072 423,840 452,096 565,120 678,144 847,680 1,130,240 1,356,288 1,695,360 2,260,480 3,390,720 and 6,781,440, with no remainder.

Since 6,781,440 cannot be divided by just 1 and 6,781,440, 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).