Finding The GCF by Kristian

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Here is Kristian's powerpoint that he created during Moodle Math.

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Finding The GCF by Kristian

  1. 1. Finding the GCF By Kristian
  2. 2. Figure Out Your First Number. <ul><li>My number is 80 </li></ul>
  3. 3. Divide your number. <ul><li>80 </li></ul><ul><li>20 4 </li></ul>
  4. 4. Divide your numbers into their prime factors. <ul><li>80 </li></ul><ul><li>20 4 </li></ul><ul><li>5 4 2 2 </li></ul><ul><li>2 2 </li></ul>
  5. 5. Do all the steps over again with a different number. <ul><li>100 </li></ul><ul><li>50 2 </li></ul><ul><li>5 10 </li></ul><ul><li>2 5 </li></ul>
  6. 6. Figure out what prime numbers both have. <ul><li>80 </li></ul><ul><li>20 4 </li></ul><ul><li>5 4 2 2 </li></ul><ul><li>2 2 </li></ul><ul><li>100 </li></ul><ul><li>50 2 </li></ul><ul><li>5 10 </li></ul><ul><li>2 5 </li></ul>
  7. 7. Multiply the numbers. <ul><li>5x2x2=20 </li></ul>
  8. 8. The answer is the GCF. <ul><li>20 is my GCF. </li></ul>

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