13 is destiny??
A=1,B=2,C=3................................Z=26
Leeteuk // L => 12
Heechul // H => 8
Hangeng // H => 8
Yesung // Y => 25
Kangin // K => 11
Shindong // S => 19
Sungmin // S => 19
Eunhyuk // E => 5
Siwon // S => 19
Donghae // D => 4
Ryeowook // R => 18
Kibum // K => 11
Gyuhyun // G => 7

12+8+8+25+11+5+4+11+7=166
1+6+6=13

S = 19
U = 21
P = 16
E = 5
R = 18
J = 10
U = 21
N = 14
I = 9
O = 15
R = 18

5+10+14+9+18= 166
1+6+6=13

(Without excluding ZhouMi and Henry,let's say...

13=MEMBERS, 15=FAMILY)

shocked???here is another interesting fact or should we say DESTINY??

Teuk: 1983.07.01
Heechul: 1983.07.10
Hankyung: 1984.02.09
Yesung: 1984.08.24
Kangin: 1985.01.17
Shindong: 1985.09.28
Sungmin: 1986.01.01
Eunhyuk: 1986.04.04
Donghae: 1986.10.15
Siwon: 1987.02.10
Ryeowook: 1987.06.21
Kibum: 1987.08.21
Kyuhyun: 1988.02.03

Judging from their birth YEAR, add the last two digits..

Leeteuk: 83…. 8+3=11 ….1+1=2
Heechul: 83 ….8+3=11…. 1+1=2
HanKyung: 84…. 8+4=12 ….1+2=3
Yesung: 84…. 8+4=12 ….1+2=3
Kangin: 85…. 8+5=13….1+3=4
Shindong: 85…. 8+5=13…. 1+3=4
Sungmin: 86…. 8+6=14 ….1+4=5
Eunhyuk: 86…. 8+6=14 ….1+4=5
Donghae: 86…. 8+6=14…. 1+4=5
Siwon: 87…. 8+7=15…. 1+5=6
Ryeowook: 87…. 8+7=15 ….1+5=6
Kibum: 87 ….8+7=15 ….1+5=6
Kyuhyun: 88 ….8+8=16 ….1+6=7

Then total all the results obtained..

2+2+3+3+4+4+5+5+5+6+6+6+7=58
5+8=13

Now..let's see from MONTH's view..

Teuk: 07…. 0+7=7
Heechul: 07 ….0+7=7
Hankyung: 02…. 0+2=2
Yesung: 08…. 0+8=8
Kangin: 01… 0+1=1
Shindong: 09 ….0+9=9
Sungmin: 01…. 0+1=1
Eunhyuk: 04…. 0+4=4
Donghae: 10 ….1+0=1
Siwon: 02…. 0+2=2
Ryeowook:06…. 0+6=6
Kibum:08…. 0+8=8
Kyuhyun:02…. 0+2=2

Same way of adding
7+7+2+8+1+9+1+4+1+2+6+8+2=58
5+8=13

Finally, let's sum the month that out from their birth's month..

March (3) May (5) Nov (11) Dec (12)
0+3=3
0+5=5
1+1=2
1+2=3

3+5+2+3=13

credit to:fabulous04@sujuelfone