Answer:49Step-by-step explanation:To find the greatest common factor of 49 and 98 is 49because it ask for the greatest means the biggest,you can draw a table of two since is two numbersyou look for the number that can divide the two numbersif it can still be divide you still have to break down to the number that can not be dividedat the end you take that number which divide the two and multiply with the others or if it's alone that's the answers.