In how many ways can 18900 be split in 2 factorrs wich are relative primes ( or coprime ) ??
Ans : 8
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2 Answers
Manish Shankar
·2009-04-10 23:06:57
18900=1.22.33.52.7=a.b.c.d.e
take one of (a,b,c,d,e) and other four together
this can be done in 5 ways
take two of (b,c,d,e) and remaining two together
this can be done in 3 ways