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No. Two composite numbers, like 4 and 9, can have a GCF of 1. They are said to be relatively prime or co-prime.

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8y ago

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7y ago

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Q: Do all composite numbers share a greatest common factor that is greater than 1?
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Related questions

Is the Greatest common factor of a pair of numbers even greater than both numbers?

No, the greatest common factor is never greater than the smallest number. The greatest common factor is the largest integer that divides evenly into all of the numbers listed.


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25 and 36


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Yes it is.


Can the greatest common factor of positive numbers be greater than both numbers?

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What are the common factors of 38 and 84?

Composite. All whole numbers ending in zero are composite.


What are two composite numbers that have the greatest common factor of eight?

8 and 16, among others.