We just completed a major update. Let us know if anything is not working.
This number is a prime.
Just showing those entries submitted by 'Silva':
(Click here to show all)
A palindromic prime that can be expressed as a sum of powers with the four prime digits as bases and exponents (2^3 + 3^2 + 5^7 + 7^5). [Silva]
Replacing each digit by its square root, or subtracting 2
from each digit, you will have two other palindromic primes
formed from prime digits (32323, 72727). [Silva]
The largest 5-digit palindromic prime whose digits are perfect squares. Coincidentally, it's the ZIP Code of Novato, California. [Silva]
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell