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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)

+ The smallest prime that yields another if its sum of digits is sandwiched between its digits. [Silva]

+ The smallest prime formed from distinct non-prime digits. [Silva]

+ The first prime p such that p^2 is the reversal of a prime (163). [Silva]

+ The sum of all single-digit semiprimes. Insert two 0's between its digits and you will have the sum of the cubes of those semiprimes. [Silva]

+ The smallest prime that is the sum of first p-th primes. [Silva]

(There are 7 curios for this number that have not yet been approved by an editor.)




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