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# The DLSU/CSB ID Number trick

16 PExer
Got this from multiply.com...
just for fun, for some reason, an ID number consists of 8 digits.

you multiply the :

1st Digit by 8.

2nd by 7

and so on, just like this,

DLSU-M

1 * 8 = 8
0 * 7 = 0
5 * 6 = 30
0 * 5 = 0
0 * 4 = 0
2 * 3 = 6
3 * 2 = 6
5 * 1 = 5
55

CSB

1 * 8 = 8
0 * 7 = 0
4 * 6 = 24
5 * 5 = 25
0 * 4 = 0
8 * 3 = 24
1 * 2 = 2
5 * 1 = 5
88

the total will always be divisible by eleven, else it's not a lasallian ID number...

110 sum nung akin. Kung merong ID num dyan na hindi divisible by 11, alam na yan!!! :rotflmao: :rotflmao:
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## Comments

• The Jinx ✭✭✭
1 x 8 = 8
0 x 7 = 0
4 x 6 = 24
2 x 5 = 10
0 x 4 = 0
0 x 3 = 0
6 x 2 = 12
1 x 1 = 1
8 + 0 + 24 + 10 + 0 + 0 + 12 + 1 = 55

LOL onga no

Edit: Found the Multiply site :rotflmao:
• Moneymaker PExer
1*8= 8
0*7= 0
4*6= 24
0*5= 0
0*4= 0
5*3= 15
0*2= 0
8*1 = 8

8+0+24+0+0+15+0+8= 55

Ang saya saya!
• G o o D v i B e S PExer
0 x 8 = 0
9 x 7 = 63
9 x 6 = 54
1 x 5 = 5
4 x 4 = 16
8 x 3 = 24
5 x 2 = 10
4 x 1 = 4

0 + 63 + 54 + 5 + 16 + 24 + 10 + 4 = 176

Nice!
• rawr! PExer
ano meron sa 11? galing sa 1911 kaya?
• 16 PExer
deyzhapi wrote: »
ano meron sa 11? galing sa 1911 kaya?
That is the most logical explanation that I'm thinking about.

What does the number 11 mean to the Registrar? Hmm...
• Member PExer
1 * 8 = 8
0 * 7 = 0
4 * 6 = 24
3 * 5 = 15
3 * 4 = 12
1 * 3 = 3
1 * 2 = 2
2 * 1 = 2

8 + 0 + 24 + 15 + 12 + 3 + 2 + 2 = 66

hahaha! oo nga! nice!

off topic lang. alam niyo ba kung bakit seven letters ang subject codes ng DLSU at CSB? ako may theory - because G is the 7th letter of the alphabet and we all know what color very close to our hearts starts with the letter G. hehehe wala lang. pwede pwede!:D
• I can has cheezburger PExer
88 yung akin. Haha! Magaling.
• I can has cheezburger PExer
Katchatore wrote: »
That is the most logical explanation that I'm thinking about.

What does the number 11 mean to the Registrar? Hmm...

Nasa trivia section yun dati sa The Lasallian e. Nakalimutan ko na nga lang yung explanation nila. Basta mathematical sya.
• 16 PExer
Nasa trivia section yun dati sa The Lasallian e. Nakalimutan ko na nga lang yung explanation nila. Basta mathematical sya.
Anong month ng TLS?
• love me PExer
its sort of a security feature that tells whether an id number is valid... this was in one of our accounting subjects rgarding computer information systems..
• Dahil ang minsan ay... PExer
Oooooh...

Mine is 187/11 = 17.

Effective din ba 'to sa ibang schools?
• sipping tea like a sir PExer
1 * 8 = 8
0 * 7 = 0
6 * 6 = 36
1 * 5 = 5
2 * 4 = 8
4 * 3 = 12
3 * 2 = 6
2 * 1 = 2
77/11 = 7

haha. ayus ah.

I think yung number 11 ay coding system. And yung id trick yung code breaker.
• Member PExer
1 x 8 = 8
0 x 7 = 0
4 x 6 = 24
7 x 5 = 35
9 x 4 = 36
4 x 3 = 12
3 x 2 = 6
0 X 1 = 0

=121 galing XD 11 x 11

hala naglabasan ng id number! magkaka alaman na ng pangalan:D
• I can has cheezburger PExer
Ay eto, nahanap ko na. kaso misteryo pa rin pala yung significance ng 11. haha! Baka nga kasi 1911?

11 - the modulo number used to determine a students ID number.
The ID numbers are not determined in numerical orderfor example, 10535475 will not be succeeded by 10535476. It is however, determined using a system of modular arithmetic. (Geeks.) Only the significance of the number 11 remains a mystery.
• Member PExer
masubukan nga hehe.

1 x 8 = 8
0 x 7 = 0
7 x 6 = 42
5 x 5 = 25
6 x 4 = 24
7 x 3 = 21
4 x 2 = 8
4 x 1 = 4

= 132/11
= 12

nice.:D napansin ko din to distinguish csb from dlsu's id no., ung sa csb id no starts ex. 1075**** to 1078**** then sa dlsu naman 1070**** to 1074****
• Member PExer
77 yung total ko...hahaha
• 'coz i'm not sane ✭✭
1 * 8 = 8
0 * 7 = 0
4 * 6 = 24
9 * 5 =45
6 * 4 = 24
7 * 3 = 21
1 * 2 =2
8 * 1 = 8

8+0+24+45+24+21+2+8= 132/11= 12. Ayus! Lucky number ko pa 12

Btw, I first saw this topic on the onelasalle yahoo groups. They say that this is a type of Check Digit Verification (CDV) code for Identification Cards (IDs).
• I can has cheezburger PExer
Ahhh...so kaya pala #11. haha. wala naman ata siyang special significance.

Modulus 11:
http://docs.hp.com/en/32209-90024/apds02.html
• Member ✭✭
88 skin hehe
• Member PExer
Katchatore wrote: »
Got this from multiply.com...

110 sum nung akin. Kung merong ID num dyan na hindi divisible by 11, alam na yan!!! :rotflmao: :rotflmao:

110 rin akin!
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