80
40,2
20,2,2
10,2,2,2
5,2,2,2,2
62
2,31
50
25,2
5,5,2
50 25,2 5,5,2
50 25,2 5,5,2
Factor tree of 50: .........50 ........./ \ .......25 2 ......./ \ ......5 5 prime factorization of 50: 2 x 5 x 5
Use a factor tree. 50 25,2 5,5,2
50 25,2 5,5,2 2 x 5 x 5 = 50
The factor tree of 50:5025,25,5,25025,25,5,2
50 = 2 x 5 x 5 OR 2 x 52
4 is a prime factor of 20 whereas it isn't a factor of 50.
50 is not a prime factor or a prime number because it has more than two factors and so it is a composite number
50 25,2 5,5,2
Factor trees are useful to see all of the factors of a number. If you end up with a composite, or un-prime number, you havent successfully completed the factor tree. for example: 50 10,5 you obviously wouldn't end here because you can break 10 down into 5 and 2 you finished tree would look like 50 10,5 5,5,2
50 25,2 5,5,2