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(just those submitted by Silva)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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]




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