Question

Use prime factorisation method to determine the HCF of each of the following: i (i)12, 18 (ii) 22, 34 (iii) 144, 100 (iv)6, 10, 11, 14 (v) 520, 1430 (vi) 54, 60, 72, 80 .
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Answer 1

Step-by-step explanation:

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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