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A070029
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Primes with only prime digits and whose initial, all intermediate and final iterated sums of digits are primes.
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1
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2, 3, 5, 7, 23, 223, 227, 353, 2333, 2777, 3323, 7727, 27527, 33377, 33773, 35537, 35573, 35753, 37337, 52727, 53777, 55337, 55373, 55733, 57557, 57737, 57773, 73553, 73757, 75227, 75353, 75377, 75533, 75557, 75773, 77573, 222557, 222773
(list; graph; refs; listen; history; internal format)
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