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Puzzle ZTDT 



??

My BrainBashers calculator is low on batteries again, and the following multiplication is wrong. Can you correct it?

Each of the numbers has the correct digits, but they have been mixed up.

Luckily, the solution is correct, which makes the task a little easier.
    2471
    3725 x
————————
22084429

Puzzle Copyright © Kevin Stone

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Hint
How can the answer end in 9?

 

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