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Numerical Ability
Number System
3) What is the largest positive integer n for which 8^n divides 44^44?
Read Solution (Total 8)
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- ans is 29....
see akilesh
8^n/44^44
8^n=2^3n,44^44=(4*11)^44=(2^2*11)^44=2^88
so,3n=88
n=29(app)
- 11 years agoHelpfull: Yes(10) No(3)
- please explain
- 11 years agoHelpfull: Yes(9) No(0)
- 44^2 is devisible by 8.
like that 44^4 by 8^2
44^6 by 8^3.... and so on
hence for 44 we have to take 22.
hence n=22
if it is rong den plz correct me.thnx - 11 years agoHelpfull: Yes(7) No(2)
- 44^44/8^n
=(2^2*44)*11^44/2^3n
=2^(88-3n)*11^44
now to make it devisible 88-3n=0
n=29 - 11 years agoHelpfull: Yes(5) No(0)
- 44=4*11
now
4^44/8^n= 2^88/2^3n
now (88/3) we get 29 is the closest integer
so ans is 29 - 11 years agoHelpfull: Yes(1) No(0)
- 8^2= 4^3
so ans is 28 - 11 years agoHelpfull: Yes(0) No(14)
- 44=2*2*11
44^44/8^n=2^88*11^44/2^3n
3n - 11 years agoHelpfull: Yes(0) No(3)
- 44=2*2*11
44^44/8^n=2^88*11^44/2^3n
3n - 11 years agoHelpfull: Yes(0) No(2)
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