Factor Tree PuzzlesFill in the partially completed factor trees in this collection of diagrams. 
Type whole numbers greater than one into the circles to complete the factor trees. Remember that each branch of the tree will eventually end in a prime number. You can read instructions for more information about completing factor trees.
InstructionsTry your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help. When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file. 



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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician? Comment recorded on the 10 September 'Starter of the Day' page by Carol, Sheffield PArk Academy: "3 NQTs in the department, I'm new subject leader in this new academy  Starters R Great!! Lovely resource for stimulating learning and getting eveyone off to a good start. Thank you!!" Comment recorded on the 26 March 'Starter of the Day' page by Julie Reakes, The English College, Dubai: "It's great to have a starter that's timed and focuses the attention of everyone fully. I told them in advance I would do 10 then record their percentages." 
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Scan the QR code below to visit the online version of this activity.
https://Transum.org/go/?Num=576
If you are not familiar with factor trees I suggest you do the 'exercise' before attempting these puzzles. The following instructions explain how to do the exercise.
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Sarah Carter, Twitter
Wednesday, June 20, 2018
Chris Smith, Newsletter 587
Saturday, February 12, 2022
"Find two positive integers (neither ending in zero) that multiply to give 10000. It may help to find the prime factors of 10000 first."