I don’t know how can you figure this out. I understand what the question is as

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primary 5 Maths Singapore

I don’t know how can you figure this out. I understand what the question is asking but I just don’t know the strategy.

Date Posted: 6 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

I list out the multiples to get the common number. Not sure if there is an easier way.

Date Posted: 6 years ago