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Method 1:
List the factors of each number.
Factors of 7: 1, 7
Factors of 28: 1, 2, 4, 7, 14
Identify the greatest common factor.
The greatest common factor of 7 and 28 is 7.
The GCF is 7. So, the numbers are not relatively prime.
Method 2:
Write the prime factorization of each number.
7 = 1 × 7.
28 = 2 × 2 × 7.
The GCF is the product of the common prime factors in each number.
GCF = 7.
The greatest common factor of 7 and 28 is 7.
The GCF is 7. So, the numbers are not relatively prime.
The greatest common factor of 7 and 28 is 7.
The GCF is 7. So, the numbers are not relatively prime.
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