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 42, 52 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 42 and 52 is 2.
GCF(42,52) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 42
2 | 42 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 42 are 2,3,7. Prime factorization of 42 in exponential form is:
42 = 21×31×71
Prime Factorization of 52
2 | 52 |
2 | 26 |
13 | 13 |
1 |
Prime factors of 52 are 2,13. Prime factorization of 52 in exponential form is:
52 = 22×131
∴ So by taking common prime factors GCF of 42 and 52 is 2
Factors of 42
List of positive integer factors of 42 that divides 42 without a remainder.
1,2,3,6,7,14,21,42
Factors of 52
List of positive integer factors of 52 that divides 52 without a remainder.
1,2,4,13,26,52
Greatest Common Factor
We found the factors and prime factorization of 42 and 52. The biggest common factor number is the GCF number.
So the greatest common factor 42 and 52 is 2.
Also check out the Least Common Multiple of 42 and 52
(i) The GCF of 42 and 52 is associative
GCF of 42 and 52 = GCF of 52 and 42
1. What is the GCF of 42 and 52?
Answer: GCF of 42 and 52 is 2.
2. What are the Factors of 42?
Answer: Factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42. There are 8 integers that are factors of 42. The greatest factor of 42 is 42.
3. What are the Factors of 52?
Answer: Factors of 52 are 1, 2, 4, 13, 26, 52. There are 6 integers that are factors of 52. The greatest factor of 52 is 52.
4. How to Find the GCF of 42 and 52?
Answer:
Greatest Common Factor of 42 and 52 = 2
Step 1: Find the prime factorization of 42
42 = 2 x 3 x 7
Step 2: Find the prime factorization of 52
52 = 2 x 2 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 42 and 52 is 2