Grade Upto college levelAlgebra
Find the number of digits in the number after expansion of 100!
Find the number of digits in the number after expansion of 100!
1 Answer
askiitianexpert arulmani
Big factorials are approximated using Stirling's (approximation) formula,
Using which, 100! ~= (√2∏100)*((100/e)^100) ~= 158 digits
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algebra
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