1/2
The two numbers are 21 and 7.
1 and 20.
There are none.
The two numbers are 4 and 17.
20,21
24 + 21 = 45 24 - 21 = 3 Therefore, the two numbers are 21 and 24.
37 + 21 = 5837 - 21 = 16The two numbers therefore are 37 and 21.
1/2
20 and 1. 20 + 1 = 21 20 - 1 = 19
The two numbers are 21 and 7.
1 and 20.
21 and 9 21 - 9 = 12 21+9 = 30
You need at least two numbers to find a GCF. The GCF of 21 and 42 is 21.
The numbers are 26 and 21
There are none.
21 and 42.