0. If g = 10100 and H = 10g, then in which interval does g! = 1 . 2 .3 ........ 10100 lie?
Choose k, so that 10H = gλ= 10100k
k = H/100
10H = g H/100 >gg > g!
On the other hand, 10H = 10 x 10g = 10g+1 < g! (most factors are much bigger than 10)
10H < g! < 10H