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Greatest Common Factor of 128 and 130

Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 128, 130 i.e. 2 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 128 and 130 is 2.

GCF(128,130) = 2

GCF of 128 and 130

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 128 and 130 by Prime factorization method

Prime Factorization of 128


2 128
2 64
2 32
2 16
2 8
2 4
2 2
1

Prime factors of 128 are 2. Prime factorization of 128 in exponential form is:

128 = 27

Prime Factorization of 130


2 130
5 65
13 13
1

Prime factors of 130 are 2.Prime factorization of 130 in exponential form is:

130 = 21×51×131

∴ So by taking common prime factors GCF of 128 and 130 is 2

Greatest Common Factor of 128 and 130 by matching factors method

Factors of 128

List of positive integer factors of 128 that divides 128 without a remainder.

1,2,4,8,16,32,64,128

Factors of 130

List of positive integer factors of 130 that divides 130 without a remainder.

1,2,5,10,13,26,65,130

Greatest Common Factor

We found the factors and prime factorization of 128 and 130. The biggest common factor number is the GCF number.
So the greatest common factor 128 and 130 is 2.

Also check out the Least Common Multiple of 128 and 130

Properties of GCF 128 and 130

(i) The GCF of 128 and 130 is associative

GCF of 128 and 130 = GCF of 130 and 128

Frequently Asked Questions on GCF of 128 and 130

1. What is the GCF of 128 and 130?

Answer: GCF of 128 and 130 is 2.

2. What are the Factors of 128?

Answer: Factors of 128 are 1, 2, 4, 8, 16, 32, 64, 128. There are 8 integers that are factors of 128. The greatest factor of 128 is 128.

3. What are the Factors of 130?

Answer: Factors of 130 are 1, 2, 5, 10, 13, 26, 65, 130. There are 8 integers that are factors of 130. The greatest factor of 130 is 130.

4. How to Find the GCF of 128 and 130?

Answer:

Greatest Common Factor of 128 and 130 = 2

Step 1: Find the prime factorization of 128

128 = 2 x 2 x 2 x 2 x 2 x 2 x 2

Step 2: Find the prime factorization of 130

130 = 2 x 5 x 13

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = 2

Step 4: Therefore, the greatest common factor of 128 and 130 is 2