2419385

Appears in sequences

• Strong pseudoprimes (base-2) equal to product of 3 primes not necessarily distinct.at n=12A112450
• Pseudoprimes to a twin prime criterion of Aebi and Cairns.at n=33A224695
• Strong pseudoprimes (base 2) that become prime when two is added.at n=6A230484
• Strong pseudoprimes k to base 2 such that either k-2 or k+2 is prime.at n=20A230487