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The Greatest common factor

English 11 Public

GCF

Study Slideshow

The Factors of 21 are

1,3,7,21

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The Factors of 35 are

1,5,7,35

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The common factor of all numbers is

1

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Which number is the greatest common factor of 45 and 60?

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The Factors of 10 are

1,2,5,10

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The Factors of 20 are

1,2,4,5,10,20

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The used property in 45 × 1 = 45 is

multiplicative identity

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15 × ............... = 1 500

100

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20 is 5 times

4

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40 = ............. Tens.

4

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The smallest even prime number is 2

(✓)

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