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

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**janette diaz**- Replies: 2

My daughter have a homework of inter-math . she was on 6 grade and I dont understand this: Why is the set of factors of a number not the same as the set of proper factors of that number? Explain and give example.

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