Year in Review: Progress made toward twin prime proof

Surprising advance sparks flurry of work on mathematical conjecture

By Dana Mackenzie, 13:29 PM December 12, 2013


Some pan for gold, some pan for prime numbers. Yitang “Tom” Zhang may have found both.


Zhang, a mathematician at the University of New Hampshire, stunned the mathematical world in May when he reported a major step toward solving one of the oldest outstanding problems in number theory, called the twin prime conjecture (SN: 10/19/13, p. 38).

For more than 100 years, mathematicians have known that prime numbers — such as 7 or 17, with no divisors except for themselves and 1 — get sparser and sp...

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