Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2007-09-11 00:37:00

haruka-san
Member
Registered: 2006-11-08
Posts: 205

prime number!

Can someone help me answer this? dunno



Given that p does not divide n for all prime.
p is less than or equal to cube root of n.

Show that n is either a prime or the product of two prime.

(Hint: Assume to the contrary that n contains at least three prime factors.)

smile


Don’t compare your life to others. You have no idea what their journey is all about. ^_^

Offline

#2 2007-09-13 14:20:49

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

Re: prime number!

When you say, "Given that p does not divide n for all prime"...
The "for all prime" part I'm interested in.
Does that mean that p is a prime number?
Please tell me how to read this phrase.


igloo myrtilles fourmis

Offline

Board footer

Powered by FluxBB