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Find the sum of those positive integers n such that (n+15)^2 is a multiple of n+2

 Aug 10, 2023
 #1
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n ==11,  167

 

[11 + 15]^2 mod [11 + 2] ==0

 

[167  +  15]^2 mod [167 + 2]==0

 

Sum of  all n:  11 +  167 ==178

 Aug 11, 2023

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