sud21 Master | Next Rank: 500 Posts View User Profile Posts: 344 Joined: Sat Nov 12, 2011 3:21 am Thanked: 1 times Followed by:2 members number properties by sud21 » Fri Jan 27, 2012 9:35 am k = 4^9 * 5^ 17, how many digits does k have? Top Quote
