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Math Help - Bonus problems need it done by TOMMOROW!!

  1. #1
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    Bonus problems need it done by TOMMOROW!!

    If you take all the prime numbers less than 1,000,000 and multiply them together, what will be the last digit of the answer?????
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  2. #2
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    Hello, help123!

    Did you even try ?


    If you take all the prime numbers less than 1,000,000 and multiply them together,
    what will be the last digit of the answer?

    The primes are: . 2, 3, 5, 7, 11, . . .

    Start mutiplying . . .

    . . \begin{array}{ccc}2 \times 3 &=& 6 \\<br />
\times 5 &=& 30 \\ \times 7 &=& 210 \\ \times 11 &=& 2310 \\<br />
\vdots & & \vdots \\ & & duh!\end{array}

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  3. #3
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    thank you thank you
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