Q: Is 721,744,400 a Composite Number?

Why is 721,744,400 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 721,744,400 can be evenly divided by 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 200 208 260 325 400 520 650 1,040 1,300 2,600 5,200 138,797 277,594 555,188 693,985 1,110,376 1,387,970 1,804,361 2,220,752 2,775,940 3,469,925 3,608,722 5,551,880 6,939,850 7,217,444 9,021,805 11,103,760 13,879,700 14,434,888 18,043,610 27,759,400 28,869,776 36,087,220 45,109,025 55,518,800 72,174,440 90,218,050 144,348,880 180,436,100 360,872,200 and 721,744,400, with no remainder.

Since 721,744,400 cannot be divided by just 1 and 721,744,400, 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).