Question

descompuneti in factori primi numerele:20,36,144,175,100,8000,apoi aflati numarul divizilor numerelor date.

Answer 1

*=ori
^=putere
20 nu e prim, e numar compus.
20=2^2*5
36 nu e prim, e numar compus.
36=2^2*3^2
144 nu e prim, e numar compus.
144=2^4*3^2
175 nu e prim, e numar compus.
175=5^2*7
100 nu e prim, e numar compus.
100=2^2*5^2
8000 nu e prim, e numar compus.
8000=2^6*5^3
D=divizori
D20={1,2,4,5,10,20}
D36={1,2,3,4,6,9,12,18,36}
D144={1,2,3,4,6,8,9,12,16,18,24,36,48,72,144}
D175={1,5,7,25,35,175}
D100={1,2,4,5,10,20,25,50,100}