The book is now available! 10101...10101 (37-digits)
(just those submitted by Silva)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                    1010101 0101010101 0101010101 0101010101

Just showing those entries submitted by 'Silva': (Click here to show all)

+ The smallest semiprime of the form 1(01)n. Can you find another? [Silva]

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