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Q25.

Expert-verifiedFound in: Page 179

Book edition
Common Core Edition

Author(s)
Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

Pages
183 pages

ISBN
9780547587776

**Find the GCF. Also, Find whether the numbers are relatively prime or not** : $121,280$

The GCF is $1$. It is a relatively prime number.

In this, simply use the concept of finding the GCF by doing the factors of the number and find the factor which is common and greatest from them and also know the concept of relatively prime that means those whose have a only factor $1$ not other than any other.

Here, the numbers are $121,280$.

First finding the factors of numbers.

The factor of $121$ is $121=11\times 11$

The factor of $280$ is $280=7\times 2\times 2\times 2\times 5$

Now, the common factor among the numbers are $1$.

So, the greatest common factor is $1$.

Since, the two numbers have HCF of $1$, therefore they are relatively prime.

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