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What’s the common factor for 72 and 84
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What’s the common factor for 72 and 84

User Gints
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1 Answer

3 votes

Answer:

Explanation:

This is the general method for doing this problem. First factor these numbers into primes.

72: 2 * 2 * 2 * 3 * 3

84: 2*2 * 3 * 7

Now each number has at least two 2s

Each number has at least one 3

The highest common factor is 2 * 2 * 3 = 12

User Narann
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