Question
Sat April 11, 2015 By: Seema Mathur

how to find cube root 
 

Expert Reply
Prasenjit Paul
Wed April 15, 2015
C u b e space r o o t space o f space a space n u m b e r space c a n space b e space f o u n d space o u t space b y space u sin g space p r i m e space f a c t o r i z a t i o n comma space i f space t h e space n u m b e r space i s space a space p e r f e c t space c u b e. F o r space e x a m p l e comma 10648 equals 11 cross times 2 cross times 11 cross times 2 cross times 11 cross times 2 10648 equals bottom enclose 11 cross times 11 cross times 11 end enclose cross times bottom enclose 2 cross times 2 cross times 2 end enclose C u b e space r o o t space o f space 10648 equals 11 cross times 2 equals 22  A n o t h e r space m e t h o d space i s space u sin g space e s t i m a t i o n comma F o r space e g colon space C u b e space r o o t space o f space 61 61 space l i e s space b e t w e e n space 27 space a n d space 64 i. e.61 space l i e s space b e t w e e n space t h e space c u b e space o f space 3 space a n d space 4. C u b e space r o o t space i s space 4 plus fraction numerator 61 minus 27 over denominator 64 minus 27 end fraction equals 3 plus 34 over 37 almost equal to 3 plus.92 almost equal to 3.92 C u b e space r o o t space o f space 61 equals 3.92 left parenthesis a p p r o x i m a t e l y right parenthesis
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