Question

найти НОК=800,280,360

Answer 1

800 = 8*100 = 2^3*10^2 = 2^3*2^2*5^2 = 2^5*5^2
280 = 4*7*10 = 2^2*7*2*5 = 2^3*5*7
360 = 4*9*10 = 2^2*3^2*2*5 = 2^3*3^2*5
НОК = 2^5*5^2*3^2*7 = 800*9*7 = 800*63 = 50400
Посчитано без калькулятора!