Guess the Pattern 2
Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.
What are the next three numbers in this series?
4, 6, 12, 18, 30, 42, 60, 72, 102, 108, ?, ?, ?
Answer
The series lists numbers that are flanked by two prime numbers.
4 (3 and 5 are prime)
6 (5 and 7 are prime)
12 (11 and 13 are prime)
18 (17 and 19 are prime)
30 (29 and 31 are prime)
42 (41 and 43 are prime)
60 (59 and 61 are prime)
72 (71 and 73 are prime)
102 (101 and 103 are prime)
108 (107 and 109 are prime)
thus
138 (137 and 139 are prime), 150 (149 and 151 are prime), 180 (179 and 181 are prime)
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Comments
cdrock   
Nov 29, 2005
| Great teaser, I would have never got that without looking at answer  |
jinxman
Dec 01, 2005
| iliked it.go you!  |
sgtammo   
Dec 04, 2005
| This made my head hurt. It's not used to thinking...  |
TheEarthling    
Dec 29, 2005
| OH! Never would have thought of that. Great teaser.  |
exterminator   
Jan 01, 2006
| I never thought of that Great Teaser! Congrats on the t.o.t.d  |
christine77  
Jan 01, 2006
| HAPPY NEW YEAR!!! and good teaser, i didnt get it, but...i didnt even try!  |
stephiesd  
Jan 01, 2006
| i'm assuming flanked means between, that's not a word we use here. anyhow, that was really hard. |
mrtickles   
Jan 01, 2006
| What's wrong with 'flanked'? Made sense to me. |
lmurray   
Jan 01, 2006
| THANKS!! UR STARTING THE NEW YEAR RIGHT! PLEASE please KEEP IT UP. I LIKE CHALLENGES LIKE THIS. |
xquisette44dd
Jan 01, 2006
| I really liked this one.....excellent brain game for the New Year.  |
Brainy_1   
Jan 01, 2006
| HAPPY NEW YEAR!!! I can never get these teasers! Good one...you stumped me!!  |
vlerma   
Jan 01, 2006
| What a great way to start 2006. Now let's see is this or is it not a prime number. Lord knows it was "flanked" by a rough 2005, but most of us made it one way or another. Glad we had Briangle to keep our brains addled. HAPPPPPPPY NEW YEARRRRR EVERY1!!!  |
bluehawk   
Jan 01, 2006
| Interesting "guess the pattern2"!? Hard to guess this one . Especially on "NEW YEARS IN THE A.M. "HAPPY NEW YEAR EVERYONE" AND HAVE A POSPEROUS ONE TO BOOT.  |
gali
Jan 01, 2006
| Great teaser!!! Didn't got that one!!!  |
coachpisco 
Jan 01, 2006
| I knew it had something to do with prime numbers, but I couldn't figure it out fully enough. Very good.  |
thimblenoggin  
Jan 01, 2006
| Wow. what a wakeup! I was convinced it was a series of additions-4+2=6+6=12+6=18+12=30+12=42 +18=60 etc.
Nice One
Happy New Year!  |
shawneeo   
Jan 01, 2006
| Yeah, I thought it was a series of addition, but addition of what? Anyway, very hard, for math ret////, I mean math challenged people like me. Prime nos. are one of those things that we don't think of very much, heehee! Very good! Thanks!
HAAAAPPY NEW YEAR!!!
 |
iteachkids   
Jan 01, 2006
| OUCH! I, too, was going for an adding pattern.
Happy 2 6!!! |
sequoia-mom  
Jan 01, 2006
| I guessed the same pattern as thimblenoggin Oh well, great teaser and Happy New Year!!  |
saleprice   
Jan 01, 2006
| I too was on the addition path with a couple of multiplication & minuses, but I was obviously on the wrong road Hee hee well Happy New Year to one & all!! |
Bastet  
Jan 01, 2006
| Like Thimblenoggin, I thought it had to do with addition, also. The teaser was hard, and therefore very fun.  |
mr_brainiac 
Jan 01, 2006
| I wasn't even close to thinking in that diirection! Too busy looking for differences between numbers or looking for factors, I got stuck in a rut. |
jabdr   
Jan 01, 2006
| Well, you got me for sure. I was going crazy trying to figure out the add-on pattern. Prime huh? I like mine rare  |
lindquist_25   
Jan 01, 2006
| Whatever. I just wrote down how much each number differed from the next one and came up with a pattern. Henceforth, I came up with 114, 126, and 138. |
lindquist_25   
Jan 01, 2006
| And it was wrong. But whatever. Smart thinking |
Barticus   
Jan 01, 2006
| Stumped me. The distribution of numbers reminded me of primes, but I was still trying to add subtract and multiply.
Excellent puzzle.  |
bookerj07  
Jan 01, 2006
| that was hard, i went throught this whole other thing hahaha cool though i never even thought of prime numbers!  |
settra626    
Jan 01, 2006
| didnt get it myself, i thought adding 6 was part of the pattern, but what ever. great teaser. |
(user deleted)
Jan 01, 2006
| This one was difficult, but could also be solved many other ways. Nontheless, a good teaser with a good possible answer.
Happy New Year, Folks! Best wishes for 2006! |
leroy_h 
Jan 01, 2006
| QUICK AND EASY....HAPPY NEW YEAR TO ALL |
mogur 
Jan 01, 2006
| Loved it, failed it, hated it, in that order. Good job, cenenemeemnemmmmene. |
bootscooter58   
Jan 01, 2006
| I'm with all the adders... great puzzle to start the new year. Keep them coming!!!  |
WJSMama  
Jan 01, 2006
| I thought it had something to do with adding too, but saw that it didn't work further in the pattern. Great one! You totally got me  |
ragethe3rd  
Jan 01, 2006
| gaah I suck with numbers.  |
mrguyguy   
Jan 02, 2006
| H A R D but fun  |
don_antonini  
Jan 04, 2006
|
doesnt make any sense  |
superben  
Jan 04, 2006
| HARD!!!GOOD!!!  |
precious1026   
Jan 08, 2006
| Get Real, It's A New Year. My Brain Hurts, but I got one Write.
I'll like to see what you come up with Next Year
You See , It's like yes more, more, but then it's, No more. Especially, if it hurts to be Write. Teaser was OK.....  |
benjam   
Jan 21, 2006
| This is my favorite teaser on Braingle!!! Math is my fav. I got it, but it took me 30 min. Like Thimblenoggin, I thought it was +!!!  |
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