Tree 1 for 98 2, 49 2, 7, 7 Tree 2 for 98 14, 7 2, 7, 7
14 2, 7
14 2, 7
56/ \7 8/ / \/ 4 2/ \7 2 2 2
2, 3, 7
A Factor tree looks like this: ... 42 ... / . \ ..2 ...21 ....... / . \ .......3 . 7 So the prime factors of 42 are 2 x 3 x 7
2 * 2 * 2 * 2 * 7 = 112
42 / \ 6 7 /\ \ 2 3 7 2 * 3 * 7 = 42
42 / \ 6 7 /\ \ 2 3 7 2 * 3 * 7 = 4
238 2, 119 2, 7, 17
It is: 2*2*2*7*13 = 728
Use a factor tree. 56 28,2 14,2 7,2,2,2 The largest prime factor is 7.