BdMO National Junior 2011/7

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Moon
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BdMO National Junior 2011/7

Unread post by Moon » Fri Feb 11, 2011 1:11 pm

Problem 7:
Consider a sequence of four integers so that the GCD of first three is the same as the LCM of the last three. How many such sequences exist so that the sum of the numbers is $2011$?
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samiul_samin
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Re: BdMO National Junior 2011/7

Unread post by samiul_samin » Fri Feb 22, 2019 10:15 am

Solution is posted here.

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