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Question

The LCM of 48 and 68 is

This question was previously asked in
RRB Group D 2025 Question Paper (9-Aug-2026) (Shift 1)
The correct answer is

816

Prime factorise: 48 = 24 × 3 and 68 = 22 × 17.

LCM takes the highest power of each prime: 24 × 3 × 17 = 16 × 51 = 816.

Hence, the answer is 816.

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Important Questions from LCM and HCF

  1. The LCM of $3^3 \times 8^2 \times 13$, $3^2 \times 13^2 \times 16$ and $8^3 \times 13^2 \times 16^2$ is:
  2. The sum of two numbers is 80 and their L.C.M. is 558. What are the two numbers?
  3. The LCM of the numbers 6.3 and 0.07 is:
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  5. The sum of two numbers is 57 and their L.C.M. is 812. What are the two numbers?
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