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    jbailey1963's Avatar
    jbailey1963 Posts: 2, Reputation: 1
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    #1

    Mar 19, 2008, 09:16 AM
    can't find prime number
    Can anyone tell me the prime number for this equation? I can not find the calculator to do this.

    Thanks
    John



    (2^1279-1)??
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Mar 19, 2008, 09:28 AM
    This is not an equation, just an expression for a huge prime. An equation has an equals sign.

    For instance, . That is an equation.

    My TI-92 gave it to me, but it's too big to type out. It has about 385 digits.

    The first 30 are 104079321946643990192524032736...

    A calculator like a TI-89, TI-92, Voyage 200 will give it to you. Maple certanily will.
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