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)

Comments: ( Back to comment list | You must be logged in to post comments.)

Puzzle Thoughts

Comment 12 of 12 |

The required digit is 4.

Posted by K Sengupta on 2024-05-01 01:35:28

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info