perplexus.info :: Just Math : Non

Non - Zero Digit (Posted on 2003-12-21)

What is the last non - zero digit in (20!)!? (That is, factorial of 20 factorial).

See The Solution Submitted by Ravi Raja

Rating: 2.6667 (6 votes)

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Seems Simple

| Comment 8 of 11 |

the last non-zero digit is 4

Posted by don scheuer on 2003-12-22 13:34:44

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