Ivan Mikheevich Pervushin was a Russian clergyman and mathematician of the second half of the 19th century, known for his achievements in number theory. He discovered the ninth perfect number and its odd prime factor, the ninth Mersenne prime. Also, he proved that two Fermat numbers, the 12th and 23rd, were composite.
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Academics born in the 1820s 6
About this person
Category
Academics
Type
Academic
Status
deceased
Dates
Lived 1827 to 1900 · aged 73
Written about in
8 languages
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