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kirbykirby Group TitleBest ResponseYou've already chosen the best response.3
It just means it is not prime, meaning there is a divisor that is not just 1 and itself
 one year ago

kirbykirby Group TitleBest ResponseYou've already chosen the best response.3
For example, 2, 3, 5, 7, 11 are prime but 4, 6, 15, 21 are composite (2*2=4, 2*3=6, 3*5=15, 7*3=21)
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
thanks! u r d best!
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
one mor fn...if u hv X={1,2,3,...,10} n aRb( a relates b) such dat (a+b) is composite. wat r the elements of the relation?
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
is it (1,3),(1,5),(1,7),(1,8),...?
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
@kirbykirby?
 one year ago

kirbykirby Group TitleBest ResponseYou've already chosen the best response.3
yes it would be any pair (a,b) such that adding both together "a+b" gives a composite number Although I'm not too sure if the sum can't be greater than 10. I never saw this "Rb" notation. Does it say anywhere that (a+b) belongs to X ?
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
i think so cuz it says "... and R a relation on X defined by aRb:a+b is composite"
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
cuz X is limited on d range 110
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
wat do u fnk?
 one year ago

kirbykirby Group TitleBest ResponseYou've already chosen the best response.3
ok then I would think that the sum can't exceed 10 (but I am not 100% sure o_o)
 one year ago

niikofi12 Group TitleBest ResponseYou've already chosen the best response.0
me neither. thanks anyway
 one year ago

kirbykirby Group TitleBest ResponseYou've already chosen the best response.3
but fairly certain. Otherwise I think you'd have too many pairs to list lol
 one year ago
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