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GCF of a Prime number and a composite number is 1 if the prime number is not a factor of the composite number.

Here 103 is a prime number and 120 is a composite number. And 120 is not divisible by 103(or 103 is not a factor of 120).

So, GCF(103,120) = 1

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12y ago
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13y ago

103 is a prime number so only common factor is 1

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You need at least two numbers to find something in common.

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The GCF is 1.

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Q: What is the greatest common factor of 24 and 47?
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What is the greatest common factor of 22 and 47?

Since both 23 and 47 are prime numbers, their greatest common factor is 1.


What is the greatest common factor of 46 and 47?

The GCF is 1.


What is the greatest common factor of 47 and 14?

The GCF is 1.


What is the greatest common factor of 47 and 13?

The GCF is 1.


What is the greatest common factor of 47 and 48?

47 is a prime number so the great common factor of 47 and any other number can only ever be 1.

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