Find the greatest number that divides 189 ,223 and 347 leaving remain remainders 9, 3 and 7 respectively.
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Step-by-step explanation:
if the remainders are 9 , 3 , 7 then minus them from respective numbers
180 , 220 and 340.
find its hcf
180 = 2×3×3×2×5
220= 11×2×2×5
340 = 17×2×2×5
hcf = 2×2×5
the greatest number is 20.
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