245639

Properties

Appears in sequences

• Smallest odd prime not occurring in the numerator of any of the 2^n subset sums generated from the set 1/1, 1/2, 1/3, ..., 1/n.at n=30A075227
• Smallest odd prime not occurring in the numerator of any of the 2^n subset sums generated from the set 1/1, 1/2, 1/3, ..., 1/n.at n=31A075227
• Primes of the form 8*k-1 such that 4*k-1, 16*k-1 and 32*k-1 are also primes.at n=19A101796
• Double-safe primes which are also double-Sophie Germain primes.at n=5A162019
• Prime numbersat n=21684