TestMagic Forums - View Single Post - A Couple of Hard Questions from a CAT Exam

dissa · 2009 May 28th, 07:48 PM

hmm.. b/n between? I didn't get it.

My answer is here,
h(n) = 2 x 4 x .....n
h(100) = 2 x 4 x ...100
h(100) + 1 = (2 x 4 x ...100 + 1) = 2^50 (1 x 2 x...50) +1

if we divide this any number below 50;
1 would be the remainder. So that the smallest prime factor would be greater than 50.

answer (E)

2009 May 28th, 07:48 PM	#8 (permalink)
dissa Within my grasp! Join Date: Apr 2009 Posts: 224	hmm.. b/n between? I didn't get it. My answer is here, h(n) = 2 x 4 x .....n h(100) = 2 x 4 x ...100 h(100) + 1 = (2 x 4 x ...100 + 1) = 2^50 (1 x 2 x...50) +1 if we divide this any number below 50; 1 would be the remainder. So that the smallest prime factor would be greater than 50. answer (E) Last edited by dissa : 2009 May 29th at 03:32 AM.