Question

What is the permutation of number having 8 digits?

Answer 1

Total of these combinations = 8+28+56+70+56+28+8+1 = 254. Total of these distinct permutations = 8+56+336+1,680+6,720+20,160+40,320 +40,320 =109,608.

Answer 2

Permutations of number having 8 digits are

8! = 8×7×6×5×4×3×2×1 = 40320 permutations

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