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Hef of 168 and Rois

Answer»

the hcf of 168 and 126 is 42

Answer is 42 The factors of 126 is 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, and 126The factors of 168 is 1, 2, 3, 4, 5, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56

according to prime factor168=2^3×7×3126=2×3^2×7HCF= 2×3×7= 42as per Euclid lemmaa=bq+r q > r less or equal to 0when r=0, HCF=q168>126126)168(1 126 -------- 42)126(3 126 ---------168=126×1+42126= 3×42+0so HCF=42



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