Question

Choose the correct alternative for each
question and write correct option in
the
1. 20, 38 and 42 have the following
number of common prime factors ...
A. 1 B. 2 C.3 D. 4​

Answer 1

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Answer 2

Answer:

Here is the answer :

A. 1

Step-by-step explanation:

The numbers 29,38,42 have 1 common factor that is 2

factors of 20 = 1,2,4,5,10,20

factors of 38 = 1,2,19,38

factors of 42 = 1,2,3,6,7,21,42

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