Thursday, March 18, 2010

The Big Riddle of Four

After a long dry period, I'm going to publish just one post here, and it contains a riddle for you, without my solution. Today is a very special day for me (well, it's my birthday), so I'm giving you the opportunity to solve something truely difficult.

Use the number 4 twice to get 64.

That's it. Not complicated, yet not very simple. You can use any mathematical operation as long as the final results contains only two 4's. For example, 42 x 4 = 64, but it contains the digit 2, which is unacceptable.

Let's see how long it takes people to solve this, and how old I'll be when it's solved.

The answer is purely mathematic. No word tricks or anything involved.

Post your answers in the comments. Can't wait to see them.

Nadav

nadavs

10 comments:

Free Softwares said...

Hey its easy : in Roman Text lets write a 4 and beside it another 4 >> IVIV
Now let interchange the V's and I's. It becomes VIIV i.e. a 6 besides a 4 = 64. EASSSSY :-)

nadavs said...

It's a math question, not a tricky one.

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Unknown said...

A few years to late maybe but didn´t see it before now.

SQRT(SQRT(SQRT(4^4!)))

Thanks
Sturle