Найдите наименьшее общее кратное чисел: 1) 42 и 63; 2) 120

1) 42/2=21; 21/3=7; 7/7=1; 42 = 2 3 7
63/3=21; 21/3=7; 7/7=1; 63 = 3^2 7
НОК (42;63) = 2 3^2 7 = 126
2) 120/2=60; 60/2=30; 30/2=15; 15/3=5; 5/5=1; 120 = 2^3 3 5
324/2=162; 162/2=81; 81/3=27; 27/3=9; 9/3=3; 3/3=1; 324 =2^2 3^4
НОК (120;324) = 2^3 3^4 5 = 3240
3) 675/3=225; 225/3=75; 75/3=25; 25/5=5; 5/5=1; 675 = 3^3 5^2
945/3=315; 315/3=105; 105/3=35; 35/5=7; 7/7=1; 945=3^3 5 7
НОК (675;945) =3^3 5^2 7 = 4725
4) 924/2=462; 462/2=; 231/3=77; 77/7=11; 11/11=1; 924 = 2^2 3 7 11
396/3=132; 132/2=66; 66/3=22; 22/2=11; 11/11=1; 396 = 2^2 3^2 11
НОК (924;396) = 2^2 3^2 7 11 = 2772