100103

Properties

Appears in sequences

• Primes that are concatenations of n with n + 3.at n=13A032626
• Primes whose sum of digits is 5.at n=27A062341
• Define an increasing sequence as follows. Given the first term, called the seed (which need not share the property of the remaining terms), subsequent terms are obtained by inserting at least one digit in the previous term so as to obtain the smallest number with the specified property. This is the prime sequence with the seed a(1) = 1.at n=5A068166
• Define an increasing sequence as follows. Given the first term called the seed (the seed need not have the property of the sequence.). Subsequent terms are defined as obtained by inserting/placing digits (at least one) in the previous term to obtain the smallest number with a given property. This is the growing prime sequence for the seed a(1) = 3.at n=5A068168
• Smallest k whose 'Reverse and Subtract' trajectory has a preperiodic part of length n.at n=18A072138
• Numbers n with property that n sets a new record for the length of the preperiodic part of the 'Reverse and Subtract' trajectory of n.at n=7A072146
• Prime numbers such that first reversing digits and after squaring equals the result of first-squaring and after-reversing. Primes in A085305.at n=38A085306
• Least number that requires n steps to reach 0 by repeated application of f: x -> abs(x - reverse(x)).at n=18A109891
• Start with 100103 and repeatedly reverse the digits and add 2 to get the next term.at n=0A120218
• Smallest n-digit base-10 deletable prime.at n=5A125589
• The larger member of a prime pair (p,p+100000).at n=3A165297
• Integers whose decimal representation consists of three distinct digits, one appearing once, one appearing twice, and one appearing three times.at n=25A182040
• Primes in A182040.at n=1A182092
• Primes less than 1000000 sorted lexicographically in decimal representation.at n=8A210761
• a(n+1) is the smallest prime > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(1)=3.at n=14A242905
• a(n) is the first prime p such that the sum of 2*n consecutive primes starting at p is (q-1)*q where q is prime, or 0 if there is no such p.at n=39A338990
• a(1) = 2; for n > 1, a(n) is the smallest unused prime number that can be created by either removing or adding a single digit anywhere in the value of a(n-1).at n=11A389825
• Prime numbersat n=9599