September 15, 2008

Just another weekend.

Filed under: Math, misc. — Jonathan @ 10:14 pm

This weekend I went and watched Burn After Reading and read The Last Lecture by Randy Pausch, both of which I enjoyed greatly! I recommend them both. School is back in full swing and I am slowly losing all of my free time again; I miss it already. But, there is the light at the end of the tunnel: Only 8 months until graduation. I guess it is time to start thinking about what comes next; not something I really want to get into right now.

I guess I’m kind of distracted right now by football (Dallas/Philadelphia, hell of a game by the way) and I feel like I’m being short. So, I will leave this with a math problem:

When we perform a ‘digit slide’ on a number, we move its units digit to the front of the number. For example, the result of a ‘digit slide’ on 6471 is 1647. What is the smallest positive integer with 4 as its units digit such that the result of a ‘digit slide’ on the number equals 4 times the number?

Solution is in the comments

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1 Comment »

  1. Solution: 102564

    Comment by cookla — September 15, 2008 @ 10:24 pm


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