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**RauLiTo****Member**- From: Bahrain
- Registered: 2006-01-11
- Posts: 142

I miss this forum very much and I came back to it with one question ... Let's try !

1 2 3

4 5 6

7 8 9

The pictures above show Android lock screen ... you can lock your mobile by one patterns like the above contain 3 digits minimum and 10 maximum. How many different pattern can you make ?

Note: you can go cross i.e from 1 to 8 or from 6 to 7 ...

my answer is : 18******* !

any different answers ?

ImPo$$!BLe = NoTH!nG

Go DowN DeeP iNTo aNyTHinG U WiLL FinD MaTHeMaTiCs ...

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**RauLiTo****Member**- From: Bahrain
- Registered: 2006-01-11
- Posts: 142

Is it very hard ?!

ImPo$$!BLe = NoTH!nG

Go DowN DeeP iNTo aNyTHinG U WiLL FinD MaTHeMaTiCs ...

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi;

He thinks so.

http://devingaffney.com/posts/listing-o … mbinations

Also he thinks he has listed them all.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**RauLiTo****Member**- From: Bahrain
- Registered: 2006-01-11
- Posts: 142

Thanks for sharing that link bobbym ... any other thoughts ?

ImPo$$!BLe = NoTH!nG

Go DowN DeeP iNTo aNyTHinG U WiLL FinD MaTHeMaTiCs ...

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi;

None that are useful. But I do have a question or two.

1) How do you get 10 maximum instead of 9?

2)

my answer is : 18******* !

I am not following that. What does it mean?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**RauLiTo****Member**- From: Bahrain
- Registered: 2006-01-11
- Posts: 142

Hello bobbym ... I am using android lock as an application in the iPhone and I just discovered that its different from the original one in andoird ... first it can have from 3 to 10 digits and second I can use the digit more than one time in the same pattern.

my answer is 187209804 ... I used excel in solving it ... !

Any other thoughts ?!

ImPo$$!BLe = NoTH!nG

Go DowN DeeP iNTo aNyTHinG U WiLL FinD MaTHeMaTiCs ...

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi RauLiTo;

Offhand I would say that it will require a computer program to do it.

If you would provide your breakdown:

3 digits = ?

4 digits = ?

5 digits = ?

.

.

.

10 digits = ?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**RauLiTo****Member**- From: Bahrain
- Registered: 2006-01-11
- Posts: 142

ImPo$$!BLe = NoTH!nG

Go DowN DeeP iNTo aNyTHinG U WiLL FinD MaTHeMaTiCs ...

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi RauLiTo;

Thank you for providing that.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**RauLiTo****Member**- From: Bahrain
- Registered: 2006-01-11
- Posts: 142

Welcome ... what do you think ?!

ImPo$$!BLe = NoTH!nG

Go DowN DeeP iNTo aNyTHinG U WiLL FinD MaTHeMaTiCs ...

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi RauLiTo;

What are looking to do? You already have the answer so what exactly do you need?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**RauLiTo****Member**- From: Bahrain
- Registered: 2006-01-11
- Posts: 142

I am not sure if it is the right answer or not .... its a question come to my mind and I wanted to share it with you guys to see what is the correct answer ... Share please !

ImPo$$!BLe = NoTH!nG

Go DowN DeeP iNTo aNyTHinG U WiLL FinD MaTHeMaTiCs ...

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Can you post all the 3 ( 372 of them ) move patterns?

Supposing you had the feature of 2 digits for a move pattern. How many of them would you get?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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