Chen primes up to 12

Chen primes: A prime number p is called a Chen prime if p + 2 is either a prime or semiprime.

There is 5 chen primes smaller than 12.

Checkout chen primes up to: 100, 500, 1000, 10000.

List#

2, 3, 5, 7, 11

Table#

 12345
1 - 5235711
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