Question

a=12,,b=18 determinati Da si Da

Answer 1

$a = 12$

$b = 18$

$D_{a}=D_{12}=\left\{\pm1,\pm2,\pm3,\pm4,\pm6,\pm12\right\}$

$D_{b}=D_{18}=\left\{\pm1,\pm2,\pm3,\pm6,\pm9,\pm18\right\}$