What is the GCF of 3 and 5?
Understand the Problem
The question is asking for the greatest common factor (GCF) of the numbers 3 and 5. To solve this, we need to determine the highest number that can divide both 3 and 5 without leaving a remainder.
Answer
1
Answer for screen readers
The greatest common factor (GCF) of 3 and 5 is 1.
Steps to Solve
- List the factors of each number
To find the GCF, we start by listing all the factors of the two numbers, 3 and 5.
- Factors of 3: 1, 3
- Factors of 5: 1, 5
- Identify the common factors
Next, we look for common factors in both lists.
- Common factors of 3 and 5: 1
- Determine the greatest common factor
The GCF is the highest number found in the common factors list.
So, the greatest common factor of 3 and 5 is:
- GCF = 1
The greatest common factor (GCF) of 3 and 5 is 1.
More Information
The greatest common factor (GCF) is defined as the largest factor that two or more numbers share. In the case of 3 and 5, they are both prime numbers, and their only common factor is 1.
Tips
Common mistakes include:
- Assuming that prime numbers have common factors other than 1. Remember, prime numbers only have factors of 1 and themselves.
- Forgetting to list out all factors before identifying the common ones.
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