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TOPIC: Re:math doubt
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Dron (Moderator)
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Re:math doubt 9 Months, 3 Weeks ago Karma: 0  
What is the greatest positive integer n, such that 2^n is a factor of 12^10?

a. 10
b. 12
c. 16
d. 20
e. 60

Solution:- 12^10 can be written as (3*4)^10, implies (2*2*3)^10, finally [(2^20)*(3^10)], so greatest value of n, such that 2^n is a factor of [(2^20)*(3^10)] is 20.
 
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