The GCF is 7a.
Since 7a is a factor of 14ab, it is automatically the GCF.
7a 7a * 4 = 28a 7a * 7b = 49ab
Yes.
7a2
7a
(5a + 2)(a + 1)
(7a - 1)(6a + 1)
Use a factor tree. 98 49,2 7,7,2
Since 49 is a factor of 98, it is automatically the GCF.
The greatest common factor is 7a.21ab+35a=7a(3b+5)GCF(21ab, 35a) = 7a. How? Factor out each term to get:21ab = 3 x 7 x a x b35a = 5 x 7 x aThe factors that occur both in 21ab and 35a are 7 and a. Therefore, the GCF is 7a.
7a