Forums » Off-Topic

Prime numbers

123456»
Sep 29, 2005 mgl_mouser link
1
Sep 29, 2005 Suicidal Lemming link
2
Sep 29, 2005 roguelazer link
3
Sep 29, 2005 xava link
5
Sep 29, 2005 JestatisBess link
7
Sep 29, 2005 who? me? link
11
Sep 29, 2005 mgl_mouser link
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Sep 29, 2005 Celkan link
1 is not a prime number. It only has one factor.

17
Sep 29, 2005 roguelazer link
Celkan be right. A prime number must have 2 factors. That rather eliminates 1 (1 factor) and 0 (infinite factors).

19
Sep 29, 2005 JestatisBess link
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Sep 29, 2005 Tyrdium link
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Sep 29, 2005 Beolach link
31

Why are we doing this?
Sep 29, 2005 mgl_mouser link
37

Because.
Sep 30, 2005 toshiro link
41

Prime numbers are 1337, that's why.
Sep 30, 2005 jexkerome link
43

Note that 1337 itself is not a prime number, though.
Sep 30, 2005 mgl_mouser link
47

Perhaps, but you'd be a total 700S3R if you were to devise it.
Sep 30, 2005 Tangent link
53
woot

In the meantime here is an easy problem to waste time on as well:
An object moves along the x-axis in such a way that at time t>=0 its position is given by: x(t)=5-(1/t+1).

At t = 3, in what direction is the object moving? Is it speeding up or slowing down or going at a constant speed?
Sep 30, 2005 toshiro link
59

What about velocity and acceleration along y- and z-axes, respectively? Can we assume those to be zero?

If yes, my calculations show that the object is slowing down, but still moving in the positive direction of the x-axis (velocity x'(3) = 1/16, acceleration x"(3) = -1/32).

P.S.: mgl_mouser, 700S3R translates to tooser. I believe the term you are looking for is '10053|2'
Sep 30, 2005 Tangent link
RE:Toshiro, sorry, I should have clarified the y and z also, but yes, you are correct.

Since v(3) > 0 and a(3) < 0, at t = 3 the object is moving in the positive direction and slowing down.

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Sep 30, 2005 mgl_mouser link
67

Yeah well, I'm too old for 31337 speak.

So, if Shape turbos along the X axis for 12 second in an Orion Cent and you turbo to the same WH along the Y axis in a Moth, who gets there first?

Answer: .pu wohs ot rekcus txen eht rof tniop gnitrats sih ot denruter dna ograc ruoy detool dna uoy deyortsed ydaerla epahS .eno oN