предвАрительно

множИтЕли

1) 42 и 63

42 = 2•4•7

63 = 3•3•7

НОД (42; 63) = 3•7 = 21

НОК (42; 63) = 3•3 •7 = 126

2) 120 и 324

120 = 2•2•2•3•5

324 = 2•2•3•3•3•3

НОД (120;324) = 2•2•3 = 12

НОК (120;324) = 2•2•3•3•3•2•5 = 3240

3) 675 и 945

675 = 3•3•3•5•5

945 = 3•3•3•5•7

НОД(675;945) = 3•3•3•5 = 135

НОК(675;945) = 3•3•3•5•7•5 = 4725

4) 924 и 396

924 =2•2•3•7•11

396 = 2•2•3•3•11

НОД(924;396) = 2•2•3•11 = 242

НОК(924;396) = 2•2•3•7•11•3 = 2772