Sarthaks Test
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If Y = {x | x is a positive factor of the number 2p – 1 (2p – 1), where 2p – 1 is a prime number}.Write Y in the roaster form.

by (10 points)
Sir why we r not taking the factors of 2p-1 & taking factors only of 2 raise to the power of p minus 1 where as the no. X is a product of these 2 no.

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1 Answer

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edited by

 Y = {x | x is a positive factor of the number 2p – 1 (2p – 1), where 2p – 1 is a prime number}.

Y- {x | x is a positive factor of the number 2p-1 (2p – 1), where 2p – 1 is a prime number}.

So, the factors of 2p-1 are 1,2,22 ,23 ,…, 2p-1 .

Y= {1,2,22 ,23 , …,2p-1 ,2p -1}

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