First 22 chen primes

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

First 22 chen primes have values between 2 and 107.

Checkout list of first: 10, 50, 100, 500, 1000 chen primes. You can also check all chen primes.

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 47, 53, 59, 67, 71, 83, 89, 101, 107

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