Find the greatest number that will divide 18 and 48 without leaving a remainder.
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Solution
Required number is the HCF of 18 and 48. 18=2×3×3 48=2×2×2×2×3 Required HCF =2×3
HCF of 18 and 48 is 6 ∴ The greatest number that will divide 18 and 48 without leaving a remainder is 6.