Using Divisibility Rules For 3.6 And 9 to Find the Common Factors 2 What's in In lesson 1, you have learned to use divisibility rules for 2, S and 10 to find the common factors of numbers. Now, give the common factors of the following numbers except i 1) 16 and 20 2) 20 and 15 3) 12 and 18 1) 30 and 45 5.25 and 10 6) 15 and 25 7) 40 and 15 8) 55 and 10 9) 20 and 30 10) 38 and 20
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