Question

Answer 1

\(a,80=2^4.5\\ 120=2^3.3.5\\ =>UCLN\left(80;125\right)=2^3.5=40\\ b,32=2^5;48=2^4.3;160=2^5.5\\ =>UCLN\left(32;48;160\right)=2^4=16\)

Answer 2

`80 = 2^4 xx 5`

`120 = 2^3 xx 3 xx 5`.

`-> (80, 120) = 2^3 xx 5 = 40`.

`32 = 2^5`

`48 = 2^4 xx 3`

`160 = 2^5 xx 5`

`-> (32, 48, 160) = 2^4 = 16`