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, 132 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 129 and 132 is 3.
GCF(129,132) = 3
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 132
2 | 132 |
2 | 66 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 132 are 2,3,11. Prime factorization of 132 in exponential form is:
132 = 22×31×111
∴ So by taking common prime factors GCF of 129 and 132 is 3
Factors of 129
List of positive integer factors of 129 that divides 129 without a remainder.
1,3,43,129
Factors of 132
List of positive integer factors of 132 that divides 132 without a remainder.
1,2,3,4,6,11,12,22,33,44,66,132
Greatest Common Factor
We found the factors and prime factorization of 129 and 132. The biggest common factor number is the GCF number.
So the greatest common factor 129 and 132 is 3.
Also check out the Least Common Multiple of 129 and 132
(i) The GCF of 129 and 132 is associative
GCF of 129 and 132 = GCF of 132 and 129
1. What is the GCF of 129 and 132?
Answer: GCF of 129 and 132 is 3.
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 132?
Answer: Factors of 132 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132. There are 12 integers that are factors of 132. The greatest factor of 132 is 132.
4. How to Find the GCF of 129 and 132?
Answer:
Greatest Common Factor of 129 and 132 = 3
Step 1: Find the prime factorization of 129
129 = 3 x 43
Step 2: Find the prime factorization of 132
132 = 2 x 2 x 3 x 11
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 129 and 132 is 3