Part 1: The Magic of Systems Management for Encryption

In Part 1, Intro and Squaring, Mathemagician, and professor of Mathematics Dr. Arthur Benjamin performs his stunning feats of mental math on the Venafi stage at RSA Conference, 2008. He gets the crowd going by squaring 2-digit, 3-digit and 4-digit numbers in his head.

Download the complete video and learn the secrets behind Benjamin's tricks free at http://www.venafi.com/prestopreso.

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• show

[cuallito]

The premier conference on encryption has 10 people attending?

[speedrevolverpr]

this dude is incredible...

[vuworksjeff]

Yeah, the attendance looks sparse, but the crowds were so large during the show, the event organizers wouldn't let us shoot during show hours. So we had to tape this after hours. If you look at the b-roll, you can see some of the real crowds during show hours.

[Lee2785991]

What the heck where are the people?

[skittleztastelikerai]

@cuallito - Yea. what a premier conference. lol.

[SedoSan]

lol, since his daughter's DoB was 1998, which is a multiple of 9, u can just add the numbers to verify, 1+9+9+8 = 27, 2+7 = 9, then multiplying it by ANY number, you just need to add the numbers and it will come out as 9, lets say you chose 692 to multiply by 1998, the result is 1382616, any 5 numbers of this 6 digits will give 6+6+1+3+1+8 = 25, 2+5 = 7, then 9-7 is 2 which was the missing number.

Magic :P

[abir112]

I like the most liked comment. Aren't you glad at least 10 people are smart enough to get invited to it? Lol, I hope you are not hoping youtubers to be there. It'll mean schitt then.

[slashniss]

this guy seems like such a nice egoless guy...man..that must have taken some serious training though and passion..

[PhilosopherSY]

Obscenely clever.

[CheeseBozo23]

wtf my cousin goes to the same college as him

[RLMagicGuru]

lol sorry I have the actual book if you want you can pick it up at any barnes and noble, it's really interesting and amazing as you can see