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A156987
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Primes using all the prime digits 2, 3, 5, 7 repeated in strings, in that order.
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0
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2357, 23357, 23557, 223577, 233357, 233557, 235577, 2235557, 2335577, 2355557, 22223557, 22233577, 22333357, 22335557, 22355777, 23333357, 222223357, 222233357, 222235777, 222333557, 222355577, 223335577, 223577777, 233357777
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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