What is the least common factor of 21 and 30. Please show work

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asked Dec 18, 2017 52.9k views

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Lana · Answer 1 · 2017-12-23T15:18:36+0000

Well, Lets Look At Their Factors.
21: 1, 3, 7, 21
30: 1, 2, 3, 5, 6, 10, 15, 30
Since One Does Not Count For Least Common Factors, We go To The Next One They Both Have, 3!!
So, The Answer Is 3.

What is the least common factor of 21 and 30. Please show work

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