Question

find the cube root of 91125 by prime factorisation

Answer 1

=3×3×3×3×3×3×5×5×5
=3×3×5
=45

.°. cube root of 91125 is (45)^3



Hope it may help you...

Answer 2

To find the cube root of 91125 by prime factorization, let's take factors of 91125..
3 l 91125
3 l 30375
3 l 10125
3 l 3375
3 l 1125
3 l 375
5 l 125
5 l 25
5 l 5
l 1

so the answer is...
= [3×3×3]×[3×3×3]×[5×5×5]
= 3×3×5
= 9×5
= 45.
thanks

# Vishwam....