phan be nhat duoc viet boi cac chu so khac nhau ma tong cac chu so cua so do bang 7 la so
so thap phan be nhat co cac chu so khac nhau ma tong cac chu so cua no bang 14 la
so thap phan be nhat co cac chu so khac nhau ma tich cac chu so cua so do bang 90 la so
Cho 3 chu so 3,4,5. Tinh tong cac so thap phan co 3 chu so khac nhau ma phan thap phan co 1 hoac 2 chu so viet boi cac chu so tren.
so thap phan be nhat co cac chu so khac nhau ma tong cua chuung bang 10 la...
so tu thap phan be nhat co cac chu so khac nhau ma tich cac chu so cua so do bang 64 la so ...
tim so tu nhien be nhat viet boi cac chu so khac nhau va tong cac chu so cua no la 25
Viet cac so thap phan be hon 1 ma phan thap phan co ba chu so khac nhau la 3 ; 5 ; 7.
so thap phan be nhat co cac chu so khac nhau ma tong bang9