Q: Is 2,311,890 a Composite Number?

Why is 2,311,890 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 2,311,890 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 35 42 70 101 105 109 202 210 218 303 327 505 545 606 654 707 763 1,010 1,090 1,414 1,515 1,526 1,635 2,121 2,289 3,030 3,270 3,535 3,815 4,242 4,578 7,070 7,630 10,605 11,009 11,445 21,210 22,018 22,890 33,027 55,045 66,054 77,063 110,090 154,126 165,135 231,189 330,270 385,315 462,378 770,630 1,155,945 and 2,311,890, with no remainder.

Since 2,311,890 cannot be divided by just 1 and 2,311,890, 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).