Brain Teasers
BCEGKMQSW
Group
These brain teasers rely on your ability to recognize groups of common attributes. For each of these puzzles you'll need to figure out why the words or letters are grouped as they are. Sometimes you will be asked to pick the odd-one-out or to place a new word into the correct group.Group
On what basis are the following two groups of letters made:
1) BCEGKMQSW
2) DFHIJLNOPRTUVXYZ
1) BCEGKMQSW
2) DFHIJLNOPRTUVXYZ
Answer
The two groups are separated on the following basis:-BCEGKMQSW - prime numbers
DFHIJLNOPRTUVXYZ - composites
Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
what are composites?
Moi, composites are numbers that are not prime.
Eg. 4,6,8,9...
Eg. 4,6,8,9...
lol... sorry.... didnt know dat *blushes* ... btw since ur such a math luver (noticed from all ur other teasers) where does 1 fit in? is it a prime number or a composite and why?
Once I saw the answer I got stumbed on what are composite numbers.
Moi, 1 is neither a prime nor a composite number. It is called a special number.
lester... why? isnt a prime numebr defined as a number that can only be divided by itself and 1 and doesnt 1 fit into that catergory? if not WHY NOT? (i drove my math teacher crazy with this q... she says she doesnt know) *evil grin*
moi, here also you will face disappointment then coz even I was taught at school that 1 is not a prime number. It is a special number coz you get the same number when any number is multiplied by 1 and so on. Hence due to special properties 1 is called as a special number. The reason for this I guess is as given above.
Gr8 teaser.
I agree. There is no lower positive number than 1, It is a "special number". I was always taught at school about prime numbers and the lowest prime number is always 2.
Nice teaser!
I would never have thought of a teaser like this. I couldn't get the answer to save my life!
Good concept, keep up the good work!
To post a comment, please create an account and sign in.
Follow Braingle!