Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 126, 130 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 126 and 130 is 2.
GCF(126,130) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 126
2 | 126 |
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 126 are 2,3,7. Prime factorization of 126 in exponential form is:
126 = 21×32×71
Prime Factorization of 130
2 | 130 |
5 | 65 |
13 | 13 |
1 |
Prime factors of 130 are 2,5,13. Prime factorization of 130 in exponential form is:
130 = 21×51×131
∴ So by taking common prime factors GCF of 126 and 130 is 2
Factors of 126
List of positive integer factors of 126 that divides 126 without a remainder.
1,2,3,6,7,9,14,18,21,42,63,126
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 126 and 130. The biggest common factor number is the GCF number.
So the greatest common factor 126 and 130 is 2.
Also check out the Least Common Multiple of 126 and 130
(i) The GCF of 126 and 130 is associative
GCF of 126 and 130 = GCF of 130 and 126
1. What is the GCF of 126 and 130?
Answer: GCF of 126 and 130 is 2.
2. What are the Factors of 126?
Answer: Factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126. There are 12 integers that are factors of 126. The greatest factor of 126 is 126.
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 126 and 130?
Answer:
Greatest Common Factor of 126 and 130 = 2
Step 1: Find the prime factorization of 126
126 = 2 x 3 x 3 x 7
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 126 and 130 is 2