1
7
The GCF is 14.
84 and 14, respectively.
The LCM is: 84
The greatest (highest) common factor of 28 and 42 is 14.The GCF is 14.
7
The GCF is 14.
The GCF is 28.
The GCF is 28.
First you express the numbers as the product of their prime factors: 28 = 2x2x7 21 = 3x7 Next you find the HCF. In this case, the HCF is 7. Finally, you multiply the numbers together and divide by the HCF. 28x21/7 = 84 Therefore the LCM of 28 and 21 is 84.
84 and 14, respectively.
The Highest Common Factor is 14
The GCF is 2.
GCF(14, 28, 21) = 7
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84.
The LCM is: 84
The GCF is 28.