Q: Is 68,800,640 a Composite Number?

Why is 68,800,640 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 68,800,640 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 193 320 386 557 640 772 965 1,114 1,544 1,930 2,228 2,785 3,088 3,860 4,456 5,570 6,176 7,720 8,912 11,140 12,352 15,440 17,824 22,280 24,704 30,880 35,648 44,560 61,760 71,296 89,120 107,501 123,520 178,240 215,002 356,480 430,004 537,505 860,008 1,075,010 1,720,016 2,150,020 3,440,032 4,300,040 6,880,064 8,600,080 13,760,128 17,200,160 34,400,320 and 68,800,640, with no remainder.

Since 68,800,640 cannot be divided by just 1 and 68,800,640, 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).