perplexus.info :: Just Math : Factorial Difference Digits

Factorial Difference Digits (Posted on 2014-01-12)

Determine the last two non-zero digits of 36! - 24!

Extra Challenge: Solving this puzzle without a computer program.

Submitted by K Sengupta

Rating: 5.0000 (2 votes)

Solution: (Hide)

The required last two non-zero digits is 64.

For a detailed explanation, refer to the solution submitted by Charlie in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Digits	Math Man	2014-01-15 17:38:26
re: How it could be done with a calculator (spoiler)	Ady TZIDON	2014-01-13 01:23:57
How it could be done with a calculator (spoiler)	Charlie	2014-01-12 17:23:08
re(2): A thought	Charlie	2014-01-12 13:52:54
re: A thought	Jyqm	2014-01-12 13:47:53
A thought	Charlie	2014-01-12 12:19:41

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