Chen prime References Chen prime mathematics Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: 67/ More Than Just Slang: Chen prime…number p is called a Chen prime if p + 2 is either prime or the product of exactly two prime factors (also known as a semi-prime). For 67, 67 + 2 = 69 = 3 × 23 . Read More…number p is called a Chen prime if p + 2 is either prime or the product of exactly two prime factors (also known as a semi-prime). For 67, 67 + 2 = 69 = 3 × 23 . Read More