228
114,2
57,2,2
19,3,2,2
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To find the greatest common factor (GCF) of 133 and 228, we first need to find the factors of each number. The factors of 133 are 1, 7, 19, and 133. The factors of 228 are 1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, and 228. The common factor between the two numbers is 19, making it the greatest common factor of 133 and 228.
factor tree of 216
The prime factor tree of 280 is:140,270,2,235,2,2,27,5,2,2,2
228
Factor Tree of 20: ........20 ......../ \ .......4 5 ....../ \ .....2 2