68
34,2
17,2,2
factor tree of 68:(68) = 2 * (34)(34) = 2 * 17so prime factors are 2 * 2 * 17
68 34,2 17,2,2 2 x 2 x 17 = 68
19 isn't a factor of 68 and 34 isn't prime. Other than that... The largest prime factor of 68 is 17.
83 is prime. No tree.
IT IS PRIME there is no factor tree
68 34,2 17,2,2
68 34,2 17,2,2
68 34,2 17,2,2
2)68 2)34 17)17 = 1 Hence '17' is the greatest prime number factor of '68'.
68 / \ 2x34 / \ 2x17
The purpose of a factor tree is to notate the process of finding the prime factorization. If a number is already prime, a factor tree is not necessary.
17