Pervushin, Ivan Mikheevich

Born in 1827. Upon learning of literacy at home, enrolled in 1838 in the Permian religious school, in 1842, was transferred to a Permian Theological Seminary, where he showed no inclination to his first lessons in mathematics. With the move of his in 1848 in the Kazan Theological Academy passion for mathematics increased undoubtedly influenced D.M. Gusev, outstanding professors at the time. In Kazan P. become more detailed and systematic information, on his examination, was present P.L. Chebyshev, please pay attention to the young man. However, circumstances were different, and P., returned to his homeland, took the place of a village priest. In 1877 and early 1878, he presented to the Academy of Sciences of the divisibility of the number 2 to the power 2 to the power 12 + 1 for prime number 7 is multiplied by 2 to the power 14 + 1 = 114689 and the number 2 to the power 2 to the power 23 + 1 on the divider 5 multiplied by 2 to the power 25 + 1 = 167772161, . prefixing the French mathematician Edouard Lucas, . dealing with the same researches,
. Academy of Sciences, the promotion of works of VP, ishlopotala from the Holy Synod of the expulsion of his mathematical books for 190 rubles. Then P. pointed to the largest prime number: 2 to the power 61 - 1 = 2307843009213693951, compiled a table of prime numbers, their differences and sums - a vast work, recognized by the Academy of Sciences is very helpful, in 1893 P. sent to the Congress of Mathematics in Chicago, his note "about the best verification of arithmetic operations over vast numbers through the dividers: 10 in the 3rd degree - 2 = 998, . 10 in 4-th degree - 2 = 9998 ", . then presented the work of determining the number of primes in certain limits, . written on, . proposed by the Neapolitan Academy of Physics and Mathematics of the Royal Society,
. Died in 1899. NV. Halyaev.