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B"H

Does anyone take a license plate and take its number as mod7?

In other words, let's say that the license plate is 3989, leaving aside the numbers.  

OK, well 3989 = 6(mod7).  

Obviously, most of you would not have that exact habit.  However, I find my mind doing it a lot.

Also, who knows the proof that an even triangular number is defined by

(2^p-1)([2^p]-1).  The latter factor is a Mersenne prime.

I believe that it was Euler who proved it, building on Euclid.  Does anyone know it?

All the best.
No, but I do other mathematical and symbolic associations with license plate numbers.  One association I have done lately is that the "In God We Trust" license plate in Indiana associates with particularly aggressive and dangerous driving.
no, I would love to be able to understand your number puzzles. They wouldn't teach me Maths at school.
Yet you are doing so well in University Lucie! In a Master's course was it! You must have been accepted and given credit on your Maths because of.....well.....I don't know I was going to say charm but even that sounds far-fetched.

I do not do so well at Maths ATM.

Lucie1 Wrote:
no, I would love to be able to understand your number puzzles. They wouldn't teach me Maths at school.






ATM;

No, but I do try and tap the metal plates on the back of my boots in the Fibonacci sequence Tongue

crap, try again.

Lucie1 Wrote:
no, I would love to be able to understand your number puzzles. They wouldn't teach me Maths at school.



Grumpy_Old_Rossco Wrote:
Yet you are doing so well in University Lucie! In a Master's course was it! You must have been accepted and given credit on your Maths because of.....well.....I don't know I was going to say charm but even that sounds far-fetched.

I do not do so well at Maths ATM.


would that be...no, not a lie?!

Smile  

I used to be great at algebra but terrible at the spacial math liuke geometry and trigonometry. Don't know why?
My dad was the opposite - good with geometry, not so good with algebra. My dad and I both have the biggest problem in algebra with factoring. For some reason I can factor better when in the context of a calculus problem, but in my algebra 1 textbook in 8th grade, I would have a really hard time with it.

Calculus is a lot easier for me to visualize; perhaps because the curves and volume and limits and such are much more the type of problem I used to think about a lot when I was little, whereas the algebra problems weren't the sorts of things I had thought much about when young. I did think a lot about geometry when little though, particularly the Pythagorean Theorem and pi.

Grumpy_Old_Rossco Wrote:
Yet you are doing so well in University Lucie! In a Master's course was it! You must have been accepted and given credit on your Maths because of.....well.....I don't know I was going to say charm but even that sounds far-fetched.

I do not do so well at Maths ATM.


ATM: Understood.  Rossco, I must say that if I were a moderator, I would propose a permanent ban on anyone who targets another forum member on a long-term basis.  However, since I am not running this forum, I will let the matter rest.

All the best.

alectrum

A True Monotheist Wrote:
B"H

Does anyone take a license plate and take its number as mod7?

In other words, let's say that the license plate is 3989, leaving aside the numbers.  

OK, well 3989 = 6(mod7).  

Obviously, most of you would not have that exact habit.  However, I find my mind doing it a lot.

Also, who knows the proof that an even triangular number is defined by

(2^p-1)([2^p]-1).  The latter factor is a Mersenne prime.

I believe that it was Euler who proved it, building on Euclid.  Does anyone know it?

All the best.


I used to take thousands of license plates down as a kid, and see all sorts of patterns.  Basically - if there was a pattern there to grasp out of the randomness then I'd get it.

A True Monotheist Wrote:
...Does anyone take a license plate and take its number as mod7?...


I do have a habit of creating sentences or suitable acronyms (for the behaviour/abilities of the drivers Smile) in regards to license plates, rather than anything maths related.  Mainly because, here in the UK, the license plates tend to have more letters than numbers [AAnn AAA].

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