What is the greatest common factor of 15 & 42
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here is the answer
Step-by-step explanation:
The factors of 42 are 42, 21, 14, 7, 6, 3, 2, 1. The common factors of 15 and 42 are 3, 1, intersecting the two sets above. In the intersection factors of 15 ∩ factors of 42 the greatest element is 3. Therefore, the greatest common factor of 15 and 42 is 3.
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