39685
This number is a composite.
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π(39685)=4172 is the only zeroless pandigital equation of the form π(m)=n containing each of the digits 1 to 9
exactly once, where π(m) is the prime-counting function. [Gupta]
Submitted: 2025-10-18 02:07:34; Last Modified: 2025-10-18 12:16:11.
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