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    The number of prime numbers is infinite. But, is the number of decades where all odd numbers are prime, except for the one ending in 5 of course, also infinite (e.g. 11, 13, 17, 19 and 101, 103, 107, 109)?

    Question #97064. Asked by gentlegiant17. (Jun 28 08 12:42 AM)


    sequoianoir

    		It is not known if there are infinitely many prime quadruplets.

    http://en.wikipedia.org/wiki/Prime_quadruplet

    As of 2007 the largest known prime quadruplet has 2058 digits.[2] It was found by Norman Luhn in 2005 and starts with

    p = 4104082046 × 4799# + 5651, where 4799# is a primorial

    ALTHOUGH I THINK THIS "4799#" IS IN ERROR !!!!
    Other references have it as ...

    4104082046 * 4800# + 5651 + d , where d = 0, 2, 6, 8 (2058 digits, Apr 2005, Norman Luhn, PRIMO)

    Jun 28 08, 8:11 AM

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