A137574 - OEIS

%I #3 Jul 07 2016 23:54:52

%S 2,3,5,8,13,21,89,233,1597,17711,28657,46368,75025,121393,514229,

%T 1346269,165580141,433494437,2971215073,53316291173

%N Fibonacci numbers and their distinct prime divisors having the same number of decimal digits.

%C The Fibonacci primes are part of this sequence.

%C Fibonacci numbers which are semiprimes are also part of the sequence.

%H Ron Knott, <a href="http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/fibtable.html#100">Fibonacci Numbers and their prime divisors</a>.

%e The Fibonacci number 53316291173 and its prime divisors 953 and 55945741 have exactly the same number of decimal digits.

%Y Cf. A000045, A053409.

%K nonn,base

%O 1,1

%A _Parthasarathy Nambi_, Apr 25 2008