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22111 (another Prime Pages' Curiosity) |
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This prime cubed contains, in base 10, seven distinct digits (except 2, 4 and 7) each occurring with the same frequency of two. It is the smallest solution in its class P3(7.2). [De Geest]
The square root of 488896321. Note that the reversal of 488896321 is 11122 squared. Truncate the first 2 to get the prime 2111, which has the same square root of reversal of square property. [Post]
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