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A283872
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Numbers k such that gcd(phi(k), k-1) > lambda(k)^2.
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1
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OFFSET
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1,1
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COMMENTS
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2320690177 is the only 2 < k < 10^11 such that gcd(phi(k),k-1) = lambda(k)^2. - Giovanni Resta, Mar 24 2017
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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