The GCF is 1.
The GCF is 1.
The GCF is 3.
The factors of 21 are: 1, 3, 7, 21 The factors of 51 are: 1, 3, 17, 51
21 - 1, 3, 7, 21 51 - 1, 3, 17 ,51 the GCF is 3
For 21: 3,7 For 51: 3,17
51/21 = 17/7 = 23/7
Their GCF is 7 . I don't know what a GFC is.
It is one.
To compare 21 feet and 17 yards, we need to convert yards to feet. Since 1 yard equals 3 feet, 17 yards is equal to 51 feet (17 x 3 = 51). Therefore, 21 feet is less than 51 feet, making 17 yards greater than 21 feet.
The GCF is 1.
The GCF is 7.
The GCF is 1.