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Question

If m is even, then (8m - 1) is divisible by:

This question was previously asked in
SSC CGL 2024 (Tier-I) Previous Year Paper (17-Sep-2024) (Shift 3)
The correct answer is

63

When m is even, (8m - 1) is divisible by 63 because the expression is a difference of cubes.


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