Question

Find the greatest common factor of 72 90 and 126
Pls show working ​

Answer 1

6

Explanation:

72={1,2,3,4,6,8,9,12,18,24,36,72}

90={1,2,3,5,6,9,10,15,18,30,45,90}

126={1,2,3,4,6,7,9,1418,21,42,63,126}

Common factors of 72,90 and 126

1,2,3,4,6

6 is greater than 1, 2, 3 and 4.

Hope this helps ;) ❤❤❤

Answer 2

72 90 126............ (2)

36 45 63..............(3)

12 15 21...............(3)

4 5 7................can't be divided more.

So, 2 x 3 x 3 = 18 is the biggest common factor of 72, 90, and 126.