duongthang wrote:This question from GMATPrep,pls help

for every positive even integer n, f(n) is defined to be product of all even integer from 2 to n, inclusive. P is smallest prime factor of h(100) +1. P is

a,between 2 and 10

b,between 10 and 20

c,between 20 and 30

d,between 30 and 40

e,more than 40

Stuart Kovinsky wrote:

duongthang wrote:This question from GMATPrep,pls help

for every positive even integer n, f(n) is defined to be product of all even integer from 2 to n, inclusive. P is smallest prime factor of h(100) +1. P is

a,between 2 and 10
b,between 10 and 20
c,between 20 and 30
d,between 30 and 40
e,more than 40

I believe this question has been posted h(100) + 1 times!

Remember, you can use the search function to see if a question has already been addressed.

For example, I did a search on h(100) and got 4 pages of hits, including:

https://www.beatthegmat.com/gmat-prep-nu ... t8649.html

and

https://www.beatthegmat.com/gmat-prep-stumper-t4092.html