Ludvig Oppermann
Ludvig Henrik Ferdinand Oppermann (September 7, 1817 - August 17, 1883) was a Danish mathematician and philologist who formulated Oppermann's conjecture on the distribution of prime numbers.
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Wikipedia
Ludvig Henrik Ferdinand Oppermann (September 7, 1817 - August 17, 1883) was a Danish mathematician and philologist who formulated Oppermann's conjecture on the distribution of prime numbers.
From [1]:
From [2]: