126 63,2 21,3,2 7,3,3,2
126 63,2 21,3,2 7,3,3,2
126 63,2 21,3,2 7,3,3,2
126 63,2 21,3,2 7,3,3,2
2,3,3,7
Factor tree:126|63 and 2|21 and 32 x 3 x 21 = 126
13 is not a factor of 126.
126 ^ 9 14 ^ ^ 3 3 7 2
126 2 x 63 2 x 3 x 21 2 x 3 x 3 x 7
The greatest common factor for 126 and 2394 is actually 126. This is because 2394 divided by 126 is 19, which is a whole number. Of course, 126 is also a factor of itself.
The factors of 126 are: 1 2 3 6 7 9 14 18 21 42 63 126 The prime factors are: 2 x 3 x 3 x 7
144