Q: Is 20,445,360 a Composite Number?

Why is 20,445,360 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 20,445,360 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1,040 1,560 3,120 6,553 13,106 19,659 26,212 32,765 39,318 52,424 65,530 78,636 85,189 98,295 104,848 131,060 157,272 170,378 196,590 255,567 262,120 314,544 340,756 393,180 425,945 511,134 524,240 681,512 786,360 851,890 1,022,268 1,277,835 1,363,024 1,572,720 1,703,780 2,044,536 2,555,670 3,407,560 4,089,072 5,111,340 6,815,120 10,222,680 and 20,445,360, with no remainder.

Since 20,445,360 cannot be divided by just 1 and 20,445,360, 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).