# Pedro Pisa Picked A Pack Of Peculiar Numbers, A Pack Of Peculiar Numbers Pedro Pisa Picked

“Fight Against Stupidity And Bureaucracy”

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A slightly different Friday post this holiday week. It reads a bit like a tongue-twister, but it’s actually more of a number twister.

Instead of the usual Friday Factoid for those interested in numbers, how about a magic equation from an unlikely source?

The unlikely source was ‘Scripta Mathematica’, a quarterly journal published by Yeshiva University from 1932 until 1973, and devoted to the philosophy, history, and expository treatment of mathematics. It was said to be, “the only mathematical magazine in the world edited by specialists for laymen.”

Never destined to be a best seller, it did however produce a few interesting tidbits for laypersons interested in, or fascinated by, mathematics or numbers.

One of these was in its March 1955 edition, when it published an article from someone named, Pedro A. Pisa who had picked a pack of peculiar numbers and formed them into a most curious equation.

The equation was simply this,

123,789  +  561,945  +  642,864  =  242,868  +  323,787  +  761,943

On the face of it there is nothing spectacular here. This just an ordinary looking and fairly simple arithmetic equation.

Ordinary, except for the fact that you could remove many of the terms, from either end of this equation, and it still worked.

For example,

Ordinary, except you could remove the two center digits from each term, and it still balanced.

For example

1289  +  5645  +  6464  =  2468  +  3287  +  7643

You could even repeat this process and it still worked:

19  +  55  +  64  =  28  +  37  +  73

And ordinary but perhaps most amazing of all, you could square every term above, in every equation, and they will still all remain true.

And it was all figured out by a someone called Pedro A Pisa.

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## 14 thoughts on “Pedro Pisa Picked A Pack Of Peculiar Numbers, A Pack Of Peculiar Numbers Pedro Pisa Picked”

1. Wow … surprised me with this one … Although I loved, but I’m left wondering if Pedro A Pisa leans while he stands.

2. Fully illustrating the beauty and elegance of numbers and mathematics.

• They can be fascinating. I just wish I understood them a bit better.

• I’ll let you in on something I’ve told very few people…I recently enrolled in a series of Math classes. I reached a point where my saying things like ‘I just don’t understand math’ to no longer be cute and funny, and decided to do something about it.

• I think maybe you should have taken me with you. 🙂
Great idea though.

3. That looks like Matrices, much simpler, but still makes you dizzy.

• LOL I vaguely remember doing matrices at university, but damned if I remember why 😦

4. Hey, I bet people thought some guy named Schrodinger sounded pretty funny, and had some wacky ideas about cats, too! (My favourite’s always been Heisenberg, though. Anybody who made his fame based on uncertainty has my vote! 😀 )

• That’s for sure…er ….I think …..well, maybe not