what is the GCF of 84 and 126?
2006-09-24 16:14:38 · 19 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
42
42x2=84
42x3=126
http://www.math.com/school/subject1/lessons/S1U3L2GL.html
2006-09-24 16:16:47 · answer #1 · answered by Jim 5 · 0⤊ 0⤋
gcf: greatest common factor
factors for 84: 1; 2; 3; 4; 6; 7; 12; 14; 21; 28; 42; and 85
factors for 126: 1; 2; 3; 6; 7; 9; 14; 18; 21; 42; 63; and 126
look for the greatest/ biggest one....it's 42
there.....42 is the gcf of 84 and 126
2006-09-24 23:32:37 · answer #2 · answered by xiaomeimei_5002 2 · 0⤊ 0⤋
Answer: 2. 2=4
84 126 2*
42 63 2*
21 63 2
7 21 3
7 3 3
7 1 7
1 1
2006-09-24 23:33:48 · answer #3 · answered by iyiogrenci 6 · 0⤊ 0⤋
G.C.F. = Greatest Common Factor
GCF of 84 and 126 is 42. There is no larger number than 42 by which you can divide both 84 and 126 perfectly.
2006-09-25 00:31:41 · answer #4 · answered by SFNDX 5 · 0⤊ 0⤋
3
2006-09-24 23:22:18 · answer #5 · answered by Anonymous · 0⤊ 0⤋
42 is the largest number that divides evenly into 84 and 126
2006-09-24 23:17:18 · answer #6 · answered by DanE 7 · 0⤊ 0⤋
42 3x 42 =126 42x2-84 so 42 is the gratest common factor
2006-09-24 23:17:31 · answer #7 · answered by Anonymous · 0⤊ 0⤋
42
2006-09-25 00:01:53 · answer #8 · answered by crystal 1 · 0⤊ 0⤋
42
2006-09-24 23:17:09 · answer #9 · answered by cyphercube 3 · 0⤊ 0⤋
84 = 2*2*3*7 = 2^2*3*7
126 = 2*3*3*7 = 2*3^2*7
So GCF(84,126) = 2*3*7 = 42
2006-09-24 23:18:57 · answer #10 · answered by Gypsy Catcher 3 · 1⤊ 0⤋
omg people. what r they teaching u in school. GCF= Greatest common factor and i got 42
2006-09-24 23:21:12 · answer #11 · answered by Pearl 2 · 0⤊ 0⤋