2006-11-16 12:43:05 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
You want the greatest common factor (not the lowest common multiple) to be 42... A few other answerers are giving you numbers that would be have 42 as their LCM, not GCF.
So just multiply 42 by a couple of numbers that are relatively prime.
(Numbers that are "relatively prime" have no prime factors in common.)
For example 42 x 2 and 42 x 3
or 42 x 6 and 42 x 35
or 42 x 7 and 42 x 18
etc.
The easiest case would be 42 x 1 and 42 x 2
GCF (42, 84) = 42
But other choices include 42 x 2 and 42 x 3:
GCF (84, 126)
42 x 10 and 42 x 3
GCF (420, 126)
etc.
There is no single answer to this problem, but there are wrong answers. :)
2006-11-16 12:49:35 · answer #1 · answered by Puzzling 7 · 1⤊ 1⤋
Try 42 x 2 and 42 x 3, as I multiplied each 42 by a prime number:
84 and 126.
Note: Greatest common factor is the largest factor common to two numbers.
2006-11-16 12:45:28 · answer #2 · answered by Action 4 · 2⤊ 0⤋
7
2006-11-16 12:46:20 · answer #3 · answered by Anonymous · 0⤊ 1⤋
the GCF is 6 & 7 b/c 6*7 is 42
2006-11-16 12:44:40 · answer #4 · answered by Anonymous · 0⤊ 1⤋
16 / 9/ 5/ 4 / 3 / 5 / 15 / 7
2016-05-21 21:42:01 · answer #5 · answered by Anonymous · 0⤊ 0⤋
6&7?
2006-11-16 12:45:05 · answer #6 · answered by Anonymous 2 · 0⤊ 1⤋