Q: Is 7,218,435 a Composite Number?

Why is 7,218,435 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 7,218,435 can be evenly divided by 1 3 5 7 15 21 23 35 49 61 69 105 115 147 161 183 245 305 343 345 427 483 735 805 915 1,029 1,127 1,281 1,403 1,715 2,135 2,415 2,989 3,381 4,209 5,145 5,635 6,405 7,015 7,889 8,967 9,821 14,945 16,905 20,923 21,045 23,667 29,463 39,445 44,835 49,105 62,769 68,747 104,615 118,335 147,315 206,241 313,845 343,735 481,229 1,031,205 1,443,687 2,406,145 and 7,218,435, with no remainder.

Since 7,218,435 cannot be divided by just 1 and 7,218,435, 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).