What is a five digit number that is divisible by 5 and 9?

Answer 1

How about 5 x 9 x enough multiples of 10 to give you 5 digits? 5 x 9 = 45
5 x 9 x 10 = 450
5 x 9 x 10 x 10 = 4500
5 x 9 x 10 x 10 x 10 = 45000
18225

Answer 2

A five-digit number that is divisible by both 5 and 9 must be divisible by their least common multiple, which is 45. To find a five-digit number divisible by 45, we can start with the smallest five-digit multiple of 45, which is 10005. The next number divisible by 45 would be 10005 + 45 = 10050. Therefore, 10050 is a five-digit number that is divisible by both 5 and 9.