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GCF and LCM

GCF and LCM
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2016-01-12 07:28
FunctionCoordinate GeometryGeometric Construction
This activity helps students learn about Greatest Common Factor (GCF) and Least Common Multiple (LCM). By inputting different numbers, students can observe the calculation process of GCF and LCM. The construction summary uses commands such as PrimeFactors, Textfield, GCD, and LCM, involving basic concepts in number theory. Suitable for high-grade elementary and junior high school students.

GeoGebra Commands & Parameters

  1. PrimeFactors(num1) → num1_f
  2. PrimeFactors(num2) → num2_f
  3. PrimeFactors(num3) → num3_f
  4. Textfield(num1) → InputBox1
  5. Textfield(num2) → InputBox2
  6. Textfield(num3) → InputBox3
  7. GCD({num1, num2, num3}) → GCF
  8. PrimeFactors(GCF) → GCF_f
  9. LCM({num1, num2, num3}) → lcm
  10. PrimeFactors(lcm) → lcm_f

AI Drawing Prompt Reference

Draw the factor trees for three numbers, input the three numbers in separate text fields, then calculate their greatest common factor and least common multiple, and display their factor trees in the graphic.
The prompt above was compiled from the original drawing commands and is for reference only.