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How many integers between 0 and 8 inclusive have an inverse modulo \(12\)?

 Jun 8, 2022
 #1
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+1

1  -  The mmi =  1
5  -  The mmi =  5
7  -  The mmi =  7

Just the above three. Their inverses are the same as themselves modulo 12.

 Jun 8, 2022
 #2
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+1

I agree with one five and seven but I think you forgot 11

 Jun 17, 2022

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