Count to ten thousand! (Part 2)

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7655

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if we assume that the password can only be 4 digits long, then for 7654 I get P = 1/5040 and unfortunately for 7656 its P=0

For my nephew who loves General Grievous:

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Math checks out, assuming exactly 4 digits.

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7659

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Snap!

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This number brings up lots of roofing contractors since dialing roof is 7663.

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Screen Shot 2020-11-23 at 21.39.00

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I looked for a good palindrome reference, but the best I could do was something shiny

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It’s big yellow book time. (Big Yellow Book - BS7671:2008 Amendment 3:2015)

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