Find the GCF of 78 and 86.(1 point)
Responses
2
2
1
1
3
3
86
For connexus.
1. 2
2. 9
3. 17
4. 18
5. 25 balloons and 17 stickers
2
To find the greatest common factor (GCF) of 78 and 86, you can start by listing the prime factors of both numbers.
The prime factorization of 78 is:
78 = 2 x 3 x 13
The prime factorization of 86 is:
86 = 2 x 43
To find the GCF, we need to find the common prime factors of both numbers and multiply them together. In this case, the only common prime factor is 2.
So the GCF of 78 and 86 is 2.
To find the Greatest Common Factor (GCF) or Highest Common Factor (HCF) of two numbers, you can use the following steps:
Step 1: List all the factors of each number.
Factors of 78: 1, 2, 3, 6, 13, 26, 39, 78
Factors of 86: 1, 2, 43, 86
Step 2: Identify the common factors.
Common factors of 78 and 86: 1, 2
Step 3: Determine the largest common factor.
The largest common factor is 2.
Therefore, the GCF of 78 and 86 is 2.