530122321

Properties

Appears in sequences

• Group the natural numbers so that the product of the terms in each group + 1 is a prime: (1), (2), (3, 4), (5, 6), (7, 8, 9, 10, 11), (12), (13, 14, 15), (16), ... This is the sequence of such primes.at n=11A073688
• a(n) = smallest prime of the form n*(n+1)*(n+2)*...*(n+k) + 1, or 0 if no such prime exists.at n=25A087564
• Smallest prime of the form n*(n+1)*(n+2)...(n+k) + 1, k > 0, i.e., a(n) > n+1, or 0 if no such prime exists.at n=25A089305
• Smallest prime of the form n(n-1)(n-2)...(n-k)+1, or 0 if no such prime exists.at n=30A092927
• Prime numbersat n=27856921