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 129, 130 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 129 and 130 is 1.
GCF(129,130) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 129
3 | 129 |
43 | 43 |
1 |
Prime factors of 129 are 3,43. Prime factorization of 129 in exponential form is:
129 = 31×431
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 129 and 130 is 1
Factors of 129
List of positive integer factors of 129 that divides 129 without a remainder.
1,3,43,129
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 129 and 130. The biggest common factor number is the GCF number.
So the greatest common factor 129 and 130 is 1.
Also check out the Least Common Multiple of 129 and 130
(i) The GCF of 129 and 130 is associative
GCF of 129 and 130 = GCF of 130 and 129
1. What is the GCF of 129 and 130?
Answer: GCF of 129 and 130 is 1.
2. What are the Factors of 129?
Answer: Factors of 129 are 1, 3, 43, 129. There are 4 integers that are factors of 129. The greatest factor of 129 is 129.
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 129 and 130?
Answer:
Greatest Common Factor of 129 and 130 = 1
Step 1: Find the prime factorization of 129
129 = 3 x 43
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 = = 1
Step 4: Therefore, the greatest common factor of 129 and 130 is 1