## Cayley 2023 Part C - Question 25, CEMC UWaterloo

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#### Difficulty: 7

#### This problem is tagged with cayley, cayley23, highschool.

**(Cayley 2023, Part C, Question 25, CEMC - UWaterloo)**

A set consists of five different odd positive integers, each greater than $2$. When these five integers are multiplied together, their product is a five-digit integer of the form $AB0AB$, where $A$ and $B$ are digits with $A \neq 0$ and $A \neq B$. (The hundreds digit of the product is zero.) For example, the integers in the set $\{3, 5, 7, 13, 33\}$ have a product of $45045$. In total, how many different sets of five different odd positive integers have these properties?

*Answer Submission Note(s)*

Your answer should be an integer from 0 to 99, inclusive.

Do NOT code a single digit answer with a leading zero, as you would in the actual contest.

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