Answer:
1. 4
2. 3.
3. 2
4. 8.
Step-by-step explanation:
Find the GCF of 4, 12, 16 .
Write as prime factors:
4 = 2*2
12 = 2*2*3
16 = 2*2*2*2
Note that 2*2 is common to all 3 of three factors The GCF = 4.
Find the GCF of 12, 18 and 9, .
Write as prime factors:
12 = 2*2 * 3
18 = 2*3*3
9 = 3*3
Note that 3 is common to all 3 of the factors The GCF = 3.
Find the GCF of 22, 8 and 28:
Write as prime factors:
22 = 2*11
8 = 2*2*2
28 = 2*2*7
Note that 2 is common to all 3 of three factors The GCF = 2.
Find the GCF of 56, 16 and 24:
Write as prime factors:
16 = 2*2*2*2
24 = 2*2*2*3
56 = 2*2*2*7
Notice that 2*2*2 is common to all 3 factors , so the GCF = 8.
