The factor tree for the number 956 would be written out as 2*2*239. To find the factor tree you can use a factor tree calculator to get the answer you need.

A factor tree is a way to notate the process of finding the prime factorization of a given number. A factor tree is complete when the bottom branch (row) consists entirely of prime numbers.

The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.