Last Updated：2025/11/29

(number theory) Any prime number p such that p+2 is either a semiprime or another prime.

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Chen prime

Source Word

Chen prime

(number theory) Any prime number p such that p+2 is either a semiprime or another prime.

Japanese Meaning

（数論）p+2が半素数または別の素数となるような素数

The mathematician explained how a Chen prime can be used in sieve methods to estimate gaps between primes.

数学者は、チェン素数（p+2が半素数または別の素数であるような素数）がふるい法で素数の間隔を推定するのに利用できると説明した。

Sense（1）

(number theory) Any prime number p such that p+2 is either a semiprime or another prime.

She tried counting Chen primes. 2, 3, 5... 7, 11... 13... 17... She couldn't concentrate.

Chen primes

（ plural ）