Các câu hỏi tương tự
tim s la so tu nhien co 3 chu so ma moi chu so co tong la 3 co bao nhieu so
Cau 1: Co tat ca bao nhieu so co 3 chu so ma trong moi so co duy nhat 1 chu so 5.
Cau 2: Biet rang 3n+1 va 5n+4 (n thuoc N) la hai so khong nguyen to cung nhau. Khi do UCLN cua 3n+1 va 5n+4 la bao nhieu.
Cau 3: Tim cap (x;y) nguyen am thoa man:xy+3x+2y+6=0 va lxl+lyl=5.
Co tat ca bao nhieu soco 3 chu so trong do co dung 1 CS 5
co bao nhieu so tu nhien co 2 chu so sao cho trong moi so co it nhat mot chu so 5
co bao nhieu so co 3 chu so khac nhau ma cac cs deu chan
co bao nhieu so co 2 chu so sao cho moi so co it nhat 1 chu so 5
Co bao nhieu so co 5 chu so ma so do chia het cho 3 ,dong thoi co it nhat 1 chu so 6
voi 2 chu so la ma 1 va 5(so la ma) so la ma lon nhat co the viet dc
(moi chu so co the dung nhieu lan hoac ko dung)
co gia tri tuog ung trog he thap phan la
trong phep chia cho 2 , so du so co the bang 0 hoac 1 .trong moi phep chia cho 3, cho 4 , cho 5 so du co the la bao nhieu ?