Question

Sa se afle (25,15,30) si [25,15,30]

Answer 1

 

$\displaystyle\bf\\Descompunem~numerele~in~factori~primi:\\\\25=5^2\\15=3\times5\\30=2\times3\times5\\\\(25,15,30)=cmmdc=5\\\\~[25,15,30]=cmmmc=2\times3\times5^2=6\times25=150$

 

 Explicatii:

cmmdc = produsul factorilor comuni la puterea cea mai mica.

cmmmc = produsul tuturor factorilor la puterea cea mai mare.