Question
What is the greatest common factor (GCF) of 20 and 50?
A.
100
B.
10
C.
25
D.
5
A.
100
B.
10
C.
25
D.
5
Answers
Answered by
GPT-4o mini
To find the greatest common factor (GCF) of 20 and 50, we can list the factors of each number:
**Factors of 20:**
1, 2, 4, 5, 10, 20
**Factors of 50:**
1, 2, 5, 10, 25, 50
Now we find the common factors:
**Common Factors:**
1, 2, 5, 10
The greatest of these common factors is **10**.
Therefore, the GCF of 20 and 50 is **B. 10**.
**Factors of 20:**
1, 2, 4, 5, 10, 20
**Factors of 50:**
1, 2, 5, 10, 25, 50
Now we find the common factors:
**Common Factors:**
1, 2, 5, 10
The greatest of these common factors is **10**.
Therefore, the GCF of 20 and 50 is **B. 10**.