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What Is the greatest common factor of 30, 50, and 40?

User Lupe
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2 Answers

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Answer:10

Explanation:

1x30 1x40 1x50

3x10 2x20 2x25

5x6 4x10 5x10

6x5 5x8 10x5

8x5

User Prachi G
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3 votes
The GCF is 10.


It is likely easy to notice that 30, 40, and 50 are all multiples of 10.
Listing the other factors of each number can help narrow it down.

Factors of 30 include: 1, 2, 3, 5, 6, 10, 15, 30

Factors of 40 include: 1, 2, 4, 5, 8, 10, 20, 40

And factors of 50 include: 1, 2, 5, 10, 25, 50

They all have 1,2,5, and 10 in common. However 10 is the GREATEST common factor that 30, 40, and 50 share.

The greatest common factor is 10.
User Jim Rhodes
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