Sums of two numbers having only prime factors congruent to one modulo four
Volume 118 / 2019
Banach Center Publications 118 (2019), 177-179
MSC: Primary 1N25; Secondary 11E25, 11N36, 11P32.
DOI: 10.4064/bc118-11
Abstract
We show that every sufficiently large positive integer congruent to $2$ modulo $4$ can be written as the sum of two positive integers, each having only prime factors congruent to $1$ modulo $4$.
