Verified Answer :

apologiabiology

To find the Greatest Common Factor of these numbers, write down their
factors
 24=2 times 2 times 2 times 3
 30=2 times 3 times 5
 42=2 times 3 times 7

find the numbers common to all of them and group likewise
 24=(2 times 3) times 2 times 2
30=(2 times 3) times 5
 42=(2 times 3) times 7
 the common one among all of them is 2 times 3=6

the GCF=6


treydabear

Answer:

Step-by-step explanation:

To find the Greatest Common Factor of these numbers, write down their factors

24=2 times 2 times 2 times 3

30=2 times 3 times 5

42=2 times 3 times 7

find the numbers common to all of them and group likewise

24=(2 times 3) times 2 times 2

30=(2 times 3) times 5

42=(2 times 3) times 7

the common one among all of them is 2 times 3=6

the GCF=6

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