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Search: id:A108821
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| A108821 |
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Primes such that the outer 2 digits are n and n+1 and all inner digits are 4, where 0 < n < 9. |
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| 647, 24443, 84449, 644447, 24444443, 64444444447, 2444444444443, 84444444444449, 2444444444444444444444444444443, 84444444444444444444444444444444444449
(list; graph; listen)
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