Q: Is 3,121,080 a Composite Number?

Why is 3,121,080 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 3,121,080 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 62 93 120 124 155 186 248 310 372 465 620 744 839 930 1,240 1,678 1,860 2,517 3,356 3,720 4,195 5,034 6,712 8,390 10,068 12,585 16,780 20,136 25,170 26,009 33,560 50,340 52,018 78,027 100,680 104,036 130,045 156,054 208,072 260,090 312,108 390,135 520,180 624,216 780,270 1,040,360 1,560,540 and 3,121,080, with no remainder.

Since 3,121,080 cannot be divided by just 1 and 3,121,080, 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).