Question

common factor of 30 and 40 by step
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Answer 1

$30 = 10 \times 3$

$40 = 10 \times 4$

$\sf{common \: factor \: = 10}$

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Answer 2

Answer : I hope this may help you

Step-by-step explanation:

The factors of number 30 are 1, 2, 3, 5, 6, 10, 15 and 30.

The factor of number 40 are 1,2,4,5,8,10,20

common factors of 30 40 are: 2,10