Really!Â Tomorrow is 11-11-11.Â Happens once a century.Â And of course, this 11-11-11 will be the best ever, because we have the best way to commemorate it:

For those of you with younger children, you can celebrate this way:

## Author: Jonathan Zasloff

Jonathan Zasloff teaches Torts, Land Use, Environmental Law, Comparative Urban Planning Law, Legal History, and Public Policy Clinic - Land Use, the Environment and Local Government. He grew up and still lives in the San Fernando Valley, about which he remains immensely proud (to the mystification of his friends and colleagues). After graduating from Yale Law School, and while clerking for a federal appeals court judge in Boston, he decided to return to Los Angeles shortly after the January 1994 Northridge earthquake, reasoning that he would gladly risk tremors in order to avoid the average New England wind chill temperature of negative 55 degrees. Professor Zasloff has a keen interest in world politics; he holds a PhD in the history of American foreign policy from Harvard and an M.Phil. in International Relations from Cambridge University. Much of his recent work concerns the influence of lawyers and legalism in US external relations, and has published articles on these subjects in the New York University Law Review and the Yale Law Journal. More generally, his recent interests focus on the response of public institutions to social problems, and the role of ideology in framing policy responses. Professor Zasloff has long been active in state and local politics and policy. He recently co-authored an article discussing the relationship of Proposition 13 (California's landmark tax limitation initiative) and school finance reform, and served for several years as a senior policy advisor to the Speaker of California Assembly. His practice background reflects these interests: for two years, he represented welfare recipients attempting to obtain child care benefits and microbusinesses in low income areas. He then practiced for two more years at one of Los Angeles' leading public interest environmental and land use firms, challenging poorly planned development and working to expand the network of the city's urban park system. He currently serves as a member of the boards of the Santa Monica Mountains Conservancy (a state agency charged with purchasing and protecting open space), the Los Angeles Center for Law and Justice (the leading legal service firm for low-income clients in east Los Angeles), and Friends of Israel's Environment. Professor Zasloff's other major activity consists in explaining the Triangle Offense to his very patient wife, Kathy. View all posts by Jonathan Zasloff

That song was … terrible in compared to what it could/should have said. up ’til 9 is pretty basic, but they blew that. can I say this without a movie? ” what is 11 times your number (single digit)? Well, with 11 you get two numbers! 7 gets 77! 3 gets 33! see?”

But here is where they really blew it – on the next 90 numbers (10 – 99_ :

“so some bigger numbers, let’s take 11 times 17, OK? First, take the 17 and split it, put the 7 over to the right, and push the 1 over to the left. we’re gonna’ put a nother number in the middle, between that 1 & 7. Go back to the 17, which is a 1 & a 7, add them together, 1 + 7 = 8. Put that 8 in the middle so you have 187. That’s the number; 11 x 17 = 187. 11 x 26 = 268. 11 x 67 = 737. Wait!wait!wait? Splitting the 67 should have a 6 over on the left. What’s that 7 ? Well, when you added the 6 & the 7, which is 13, you have to carry the one. It is still multiplication, this is just a way to see it easier, but it’s still “carry the number stuff’. So try 11 x 74 = 814, right? ”

You could keep going :

” But maybe think about it this way, which is a real way and not a Parlour Trick Way, a way that serves one well with other numbers besides 11, someday :

” That’s a fun trick, and impressive when it’s used, but here’s the real way to think of it : What is 11 times any number? It’s 10 and another. So 11 times 17 is ten 17s, which is 170, then another 17 so it’s 187″

On an even nerdier note: you can easily tell if a number is divisible by 11 by adding up alternating digits into two totals. If the totals are equal of differ by a multiple of 11, the number itself is divisible by eleven. So 4,785 is divisible by eleven, since 4 + 8 = 7 + 5. Or 726; 7 + 6 is eleven greater than 2.

This could be the single nerdiest thing ever written on a very nerdy website. Congratulations! I’m tempted to say that your prize is — a toaster.

Jonathan: The music would have sounded a lot better if it had been recorded in Doubly.

Congratulations: You’ve opened Samefacts to the wonders of number theory.

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