Question

Use prime factorisation method to determine the HCF (i) 22,34 (ii)520,1430 (iii)54,60,72,80
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Answer 1

Answer:

I) 2| 12,18 ii) 2 | 22,34 iii) 2 | 144,100

3| 6, 9 11 ,17 2 | 72, 50

3| 2,3 2 | 36, 25

iv) 1 | 6,10,11,14 v) 2 | 540, 1430 vi) 2 | 54,60,72,80

5 | 270 , 715 | 27, 30, 36,40

| 54, 143

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Answer 2

Step-by-step explanation:

1. 22 = 2 x 11

34 = 2 x 17

H.C.F. (22,34) = 2

2. 520 = 2 X 2 X 2 X