36 Divide by two.
18,2 Divide by two.
9,2,2 Divide by three.
3,3,2,2 Stop.
Use a factor tree. 186 93,2 31,3,2
Use a factor tree. 98 49,2 7,7,2
Use a factor tree. 96 48,2 24,2,2 12,2,2,2 6,2,2,2,2 3,2,2,2,2,2 The greatest prime factor of 96 is 3.
Use a factor tree. 343 49,7 7,7,7
Use a factor tree. 108 54,2 27,2,2 9,3,2,2 3,3,3,2,2
Use a factor tree. 55 5,11
13 is already prime, no tree required.
15 23
22 2,11
When you want to find the prime factorization of a composite number.
Use a factor tree to break apart numbers.ie. 12...../ \....2 6....../ \.....2 3The prime factors of 12 are 2, 2, and 3.
Use a factor tree. 45 15,3 5,3,3
Use a factor tree. 98 49,2 7,7,2
Use a factor tree. 154 77,2 11,7,2
Use a factor tree. 42 21,2 7,3,2
Use a factor tree. 50 25,2 5,5,2
Use a factor tree. 186 93,2 31,3,2