The book is now available! 1962
(just those submitted by Firoozbakht)
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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 'Firoozbakht': (Click here to show all)

+ 1962*1962! - 1 is prime. [Firoozbakht]

+ p = 1*9*6*2 + 1 is the largest prime factor of 1962 & 1962 = p*(1+9+6+2). Note that 1962 is the only even number with this property and also there exists only one odd number with this property. [Firoozbakht]

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