A m a z i n g Amazing S e r i e s Series !!

Number Theory Level pending

what will be the next term in the given series : 4 , 8 , 8 , 16 , 20 , a 4,8,8,16,20,a find a


The answer is 16.

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1 solution

Rishabh Jain
May 31, 2014

this will gonna blow your mind !!! φ ( 10 ) , φ ( 20 ) , φ ( 30 ) , φ ( 40 ) , φ ( 50 ) , φ ( 60 ) \varphi (10),\varphi (20),\varphi (30),\varphi (40),\varphi (50),\varphi (60)

What is the meaning of the phi function?

A Former Brilliant Member - 6 years, 11 months ago

I don't get it...

Trevor Arashiro - 6 years, 11 months ago

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it is eulers phi function. just refer http://en.wikipedia.org/wiki/Euler%27s totient function http://primes.utm.edu/glossary/xpage/eulersphi.html

Anishchandran C - 6 years, 5 months ago

does phi function represent Euler's Totient function ?

Shubham Dash - 6 years, 11 months ago

what really is it

Chaitnya Shrivastava - 6 years, 9 months ago

boss!!! aptitude is for normal questions, not for scientists!!!!!!!!!!!!

shubham sharma - 6 years, 11 months ago

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