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A174267
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Primes p such that 5^p - 4 is also prime.
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0
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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EXAMPLE
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For p=5, 5^5-4=3121; p=7, 5^7-4=78121; p=47, 5^47-4= 710542735760100185871124267578121
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PROG
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(Magma) [ p: p in PrimesUpTo(3500)| IsPrime(5^p-4)]
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CROSSREFS
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KEYWORD
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nonn,more,bref
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AUTHOR
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STATUS
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approved
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