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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 10^{69} + 69 is prime. [Gupta] The sum of the first nonprimes less than or equal to 69 is prime. [Patterson] 100^69  69 is prime. Note that 69 is the smallest number with this property. [Firoozbakht] The smallest strobogrammatic semiprime. [Capelle] Strobogrammatic primes that don't use 6 or 9 are dihedral primes. (6) * prime(9) = 69. [Gupta] The concatenation in order of all the nonprime numbers 1 through 69 is the largest nontitanic prime formed by this way, i.e., 14689101214151618202122242526272830323334353638394042444546484950515254555657586062636465666869. [Loungrides]
(There are 5 curios for this number that have not yet been approved by an editor.) To link to this page use /curios/page.php?number_id=577
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