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Collecting coins comes in packs of 15, while coin holders come in packs of 25. What are the least number of packs you should buy in order to have the same numbers of coins and coin holders?

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User Rgvassar
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1 Answer

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What you do is the prime factors of each number so 15 is 3 and 5 and 25 is 5 and 5 and then you find out which is the smaller square number of the two.
User Emazzotta
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