Co bao nhieu so co 2 chu so khi chia cho du1 , chia cho 3du 2 , chia cho 5du 4
aaii giup minh,minh tick cho 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000lan