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

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**tony123****Member**- Registered: 2007-08-03
- Posts: 189

find all positive integers to

*Last edited by tony123 (2009-04-16 06:24:53)*

Offline

**Identity****Member**- Registered: 2007-04-18
- Posts: 934

tony123 wrote:

find all positive integers to

Since this must be a cube,

No solution?

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,832

Hi Tony123;

What are you asking for? Are you asking for what value of n that would make that sum equal 400, because I don't think that is possible.

bobbym

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

Pages: **1**