find hcf of 20 and 70 by prime factorization method.
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The HCF of 20 and 70 are
20 - 2 × 5 × 2
70- 2 ×5×7
The HCF is 2 × 5 = 10
20 - 2 × 5 × 2
70- 2 ×5×7
The HCF is 2 × 5 = 10
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Answer:
20=2,2,5,1 70=2,5,7,1
common factors= 2,5
hcf(highest common factor 5
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