23399339

Properties

Appears in sequences

• a(n) = smallest prime in which n substrings containing the most significant digit are primes.at n=7A088603
• Smallest n-digit right-truncatable prime.at n=7A127889
• This sequence of prime numbers reproduces itself (without its "tail") when the last digit of each term is erased.at n=28A155873
• Smallest prime such that the n numbers obtained by removing 1 digit on the right are also prime, while no digit can be added on the right to get another prime.at n=7A232125
• Largest prime that can be obtained from n by successively appending digits to the right with the constraint that each of the numbers obtained that way must be prime; a(n)=0 if there is no such prime at all.at n=22A232129
• Super-prime leaders: right-truncatable primes p with property that appending any single decimal digit to p does not produce a prime.at n=22A239747
• a(n) is the right-truncatable prime of n digits appearing as the initial digits of the smallest number of the form exp(k) for some positive integer k.at n=7A240174
• Prime numbersat n=1471785