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.
2)68 2)34 17)17 = 1 Hence '17' is the greatest prime number factor of '68'.
68 34,2 17,2,2
68 34,2 17,2,2
68 34,2 17,2,2
IT IS PRIME there is no factor tree
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 and 68 are not relatively prime because they have 17 as a common factor.