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Question
How many common factors do 42 and 49 have?
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Solution
The correct option is A 2
Factors of 42: 1, 2, 3, 6, 7, 14, 21, and 42
Factors of 49: 1, 7, and 49
The common factors are 1 and 7.
So, 42 and 49 have 2 common factors.
Factors of 42: 1, 2, 3, 6, 7, 14, 21, and 42
Factors of 49: 1, 7, and 49
The common factors are 1 and 7.
So, 42 and 49 have 2 common factors.
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