a) tìm các Ư
\(Ư\left(12^2\right)\)
\(Ư\left(18^2\right)\)
\(Ư\left(24^2\right)\)
\(Ư\left(32^2\right)\)
\(Ư\left(36^2\right)\)
\(Ư\left(48^2\right)\)
\(Ư\left(50^2\right)\)
\(Ư\left(60^2\right)\)
\(Ư\left(64^2\right)\)
\(Ư\left(72^2\right)\)
\(Ư\left(90^2\right)\)
\(Ư\left(96^2\right)\)
\(Ư\left(100^2\right)\)
b) tìm các \(ƯC\) ở câu a
;((
\(Ư\left(144\right)=\left\{1,2,3,4,6,8,9,12,16,18,24,36,48,72,144\right\}\)
\(Ư\left(324\right)=\left\{1,2,3,4,6,9,12,18,27,36,54,81,108,162,324\right\}\)
\(Ư\left(576\right)=\left\{1,2,3,4,6,8,9,12,16,18,24,32,36,48,64,72,96,144,192,288,576\right\}\)
\(Ư\left(1024\right)=\left\{1,2,4,8,16,32,64,128,256,512,1024\right\}\)
\(Ư\left(1296\right)=\left\{1,2,3,4,6,8,9,12,16,24,27,36,48,54,72,81,108,144,162,216,324,432,648,1296\right\}\)