40 20,2 10,2,2 5,2,2,2
800 400,2 200,2,2 100,2,2,2 50,2,2,2,2 25,2,2,2,2,2 5,5,2,2,2,2,2
83 is prime. No tree.
61 is already prime. It doesn't need a tree.
it is 40 because it is the greatest common factor for the numbers10 and 40
Factor tree of 40: 40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
It's 35
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40 20,2 10,2,2 5,2,2,2
40/ \4*10/ \2*2 5*2Hope this helped you
All I did was make a factor tree. The GCF (Greatest Common Factor) is 5. :)
The Greatest Common Factor of 40 and 100 is 20. 5x2x2. Use a factor tree and learn math!!!!!!!!!!!!!!