249439

Properties

Appears in sequences

• a(n) = prime(1000 * n).at n=21A031922
• 100000000n+1, 100000000n+3, 100000000n+7, 100000000n+9 are all primes.at n=7A064967
• k-th upper twin prime, where k is the n-th Fibonacci number.at n=17A093307
• Least prime p such that p*10^n+1, p*10^n+3, p*10^n+7 and p*10^n+9 are all prime.at n=7A242564
• Prime numbersat n=22000