69 multiplied by 21 is 1,449.
Factors of 69: 1, 3, 23, 69 Factors of 21: 1, 3, 7, 21 GCF (69, 21) = 3
90
The factors of 21 are: 1, 3, 7, 21 The factors of 69 are: 1, 3, 23, 69
The GCF is 3.
69/21 = 32/7
63/69 = 21/23
(21 + 69)/2 = 90/2 = 45
a baby
69 = 3 x 23
3 x 23 = 69
You would expect the answer to be 19 & 1 (giving just 19). However 21 & -1 give you a product of -21, and 23 & -3 gives -69. So, if you allow negative numbers, there is no limit.
63/69 = 21/23