Chen prime en · NOUN
Etymology
Named after Chinese mathematician Chen Jingrun, who proved in 1966 that there are infinitely many such numbers.
Meanings
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Any prime number p such that p+2 is either a semiprime or another prime.
2013, Laura Hemphill, Buying In, Haughton Mifflin Harcourt (New Harvest), page 278, She tried counting Chen primes. 2, 3, 5... 7, 11... 13... 17... She couldn't concentrate.
A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes.[…]There are infinitely [many] Chen primes and the first ten are: 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.
2014, Rajesh Kumar Thakur, The Power of Mathematical Numbers, Ocean Books, page 155:There are even magic square of primes, like this one containing Chen primes discovered by Rudolf Ondrejka:[…]
2014, Christian Bessiere et al., “Reasoning about Constraint Methods”, in Duc-Nghia Pham, Seong-Bae Park, editors, PRICAI 2014: Trends in Artificial Intelligence, Springer, page 804:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| Chen primes | Number=Plur | lexicographic |