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Numbers called relatively prime have no common factors other than 1. All even numbers have 2 as a common factor, so no even number is relatively prime with any other even number.
As an example, the factors of 14 are 1, 2, 7, and 14, and the factors of 15 are 1, 3, 5, and 15. 14 and 15 are relatively prime because the only factor they have in common is 1.
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Are two composite numbers always relatively prime?
No.
Is true that two composite numbers are relatively prime?
No it does not mean that.
If two numbers are relatively prime then one of them must be prime?
Not necessarily. 4 and 9 are relatively prime and both are composite.
What are 3 digit composite numbers which are relatively prime?
Composite numbers are numbers greater than 1 that have more than two factors. Relatively prime numbers are numbers that have no common factors other than 1. Therefore, to find 3-digit composite numbers that are relatively prime, we need to look for numbers that are composite and have no common factors. An example of such a pair of 3-digit composite numbers that are relatively prime would be 119 and 143.
Are the numbers 12 and 51 relatively prime?
Both numbers are composite because they have more than two factors
