Question

find the highest common factor in 70,105and 175


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Answer 1

Factors of 70 = 2 x 5 x 7
Factors of 105 = 3 x 5 x 7
Factors of 175 = 5 x 5 x 7
H.C.F. = 5 x 7 = 35



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Answer 2

Ans:- HCF is 35

steps:-

Prime factors of 70 = 2 . 5 . 7

Prime factors of 105 = 3 . 5 . 7

Prime factors of 175 = 5. 5. 7

common factors= 5 & 7

therefore, HCF = 5 × 7 = 35