Q: Is 1,245,580 a Composite Number?

Why is 1,245,580 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 1,245,580 can be evenly divided by 1 2 4 5 7 10 14 20 28 31 35 41 49 62 70 82 98 124 140 155 164 196 205 217 245 287 310 410 434 490 574 620 820 868 980 1,085 1,148 1,271 1,435 1,519 2,009 2,170 2,542 2,870 3,038 4,018 4,340 5,084 5,740 6,076 6,355 7,595 8,036 8,897 10,045 12,710 15,190 17,794 20,090 25,420 30,380 35,588 40,180 44,485 62,279 88,970 124,558 177,940 249,116 311,395 622,790 and 1,245,580, with no remainder.

Since 1,245,580 cannot be divided by just 1 and 1,245,580, 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).