Palindromes in the decimal expansion of .

The string **944449** was 'first' found at position **75557** in the decimal expansion of

counting
from the first digit after the decimal point. The 3. is not counted. [Patrick De Geest]

**PS** Note that **75557** is a palprime !

Both palindromes are of the 'depression' form (ref. H. Heinz).

My previous record **palindrome** found at a **dito** position is

**8257528** at position **5479745** [Patrick De Geest - *October 24, 1999*]

My record **palindromic prime** found at a **dito** position is

**9136319** at position **9128219** [PDG - *December 8, 2002*]

Note that **9128219** and **9136319** are two __consecutive__ palprimes !

Did You Know ! The string 9136319 was found at position 9128219 counting from the first digit after the decimal point of . The 3. is not counted. Moreover both numbers are two consecutive palprimes ! Dropping the left 91 from the two numbers reveals two other primes 28219 and 36319, as well as the combination 91_363_282_19 ! |

See also Sloane's OEIS A038101.

The smallest palindrome that I didn't find in the first 100 million digits of Pi is

**4620264** at position **?**

The largest palindrome that I discovered present in the first 100 million digits of Pi is

palindromic triangular nr 31 or **30416261403** at position **36111197**

Donald S. McDonald noted a 13 odd-digit palindromic number fragment

after the 1722773^{th} decimal place of number pi or

**7139999999317** at position **1722773**

The portion also contains a run of 14 consecutive **odd** digits

followed immediately by 11 **even** digits... perhaps very rare !

A neat fact published in newsgroup rec.puzzles dd. May 15 2000.