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2000 PMWC Problems/Problem I2

Revision as of 16:15, 20 April 2014 by TheMaskedMagician (talk | contribs) (Created page with "==Problem== As far as we know, the greatest prime number is <math>2^{6972593}-1</math>. What is the remainder when <math>2^{6972593}-1</math> is divided by <math>5</math>? ==Sol...")
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Problem

As far as we know, the greatest prime number is $2^{6972593}-1$. What is the remainder when $2^{6972593}-1$ is divided by $5$?

Solution

See Also

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