最大公约数：(函数)

function n = zuidagongyueshu(a,b)

if(a>b)

tem = a;

b = a;

a = tmp;

end

for i=1:a

c = rem(b,a);

if(c == 0)

n = a;

break;

end

b = a;

a = c;

end

测试：

clc;

clear;

a = 8;

b = 22;

disp('最大公约数为：');

zuidagongyueshu(a,b)

最小公倍数：(函数)

function n = zuixiaogongbeishu(a,b)

if(a>b)

tem = a;

a = b;

b = tem;

end

n = 1;

for i = 1:a

if(rem(a,i)==0&&rem(b,i)==0)

n = n * i;

a = a/i;

b = b/i;

end

end

n = n*a*b;

end

测试：

clc;

clear;

a = 12;

b = 9;

disp('最小公倍数是：');

n = zuixiaogongbeishu(a,b)