1 and 7
77 + 84 = 161
84 divided by 8 = 10.5
The greatest common factor of 42, 77 and 84 is 7.
The GCF is 7.
The GCF is 7.
7. 7x7=49. 7x11=77. 7x12=84.
84 - 7 = 77
Well, honey, the highest common factor for 21, 77, and 84 is 7. It's like finding the biggest slice of cake that all three numbers can share without any leftovers. So, grab your calculator and enjoy your math snack!
Their factors are: 77: 1, 7, 11, 77 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
To get this answer, you will need to divide both answers by 5 first, because that is the obvious number that will go into both. 385/5= 77 420/5=84 So the new fraction is 77/84. 7 will go into both (it goes into 70, and 70 plus 14(another multiple of 7!) = 84) 77/7=11 84/7=12 385/420 in its simplest form is 11/12!
GCF(84, 77, 49) = 7.