GPREP - Tricky funcion question

[Blast]

Does anyone know how to solve this question?

[Sreema]

h(100) = 2*4*6*...100
= 2^50(1*2*3..50)

h(100) divisible by nos between 2 - 50
h(100)+1 not divisible by any nos including primes between 2 - 50 because the remainder will be 1.

so ans is E

[vish150783]

h(100) = 2*4*6*...100
= 2^50(1*2*3..50)

h(100) divisible by nos between 2 - 50
h(100)+1 not divisible by any nos including primes between 2 - 50 because the remainder will be 1.

so ans is E

yup i think E is the correct answer. BTW wasn' this a OG question. This also appears in the GMAT prep. Basic concept seems to be factoriziation.

[Irena]

How did you get 2^50? Thanx!

[bbaah]

2*4*6*8*...*100 = (2*1)*(2*2)*(2*3)*(2*4)*...*(2*50)

= 2^50*(1*2*3*...*50)