Zhi-Hong Sun
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Zhi-Hong Sun (孙智宏, b. October 16, 1965) is a Chinese mathematician, working primarily on number theory, combinatorics, and graph theory.
Zhi-Hong Sun and his twin brother Zhi-Wei Sun proved a theorem about what are now known as the Wall-Sun-Sun primes that guided the search for counterexamples to Fermat's last theorem.