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 68, 76 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 68 and 76 is 4.
GCF(68,76) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 68
2 | 68 |
2 | 34 |
17 | 17 |
1 |
Prime factors of 68 are 2,17. Prime factorization of 68 in exponential form is:
68 = 22×171
Prime Factorization of 76
2 | 76 |
2 | 38 |
19 | 19 |
1 |
Prime factors of 76 are 2,19. Prime factorization of 76 in exponential form is:
76 = 22×191
∴ So by taking common prime factors GCF of 68 and 76 is 4
Factors of 68
List of positive integer factors of 68 that divides 68 without a remainder.
1,2,4,17,34,68
Factors of 76
List of positive integer factors of 76 that divides 76 without a remainder.
1,2,4,19,38,76
Greatest Common Factor
We found the factors and prime factorization of 68 and 76. The biggest common factor number is the GCF number.
So the greatest common factor 68 and 76 is 4.
Also check out the Least Common Multiple of 68 and 76
(i) The GCF of 68 and 76 is associative
GCF of 68 and 76 = GCF of 76 and 68
1. What is the GCF of 68 and 76?
Answer: GCF of 68 and 76 is 4.
2. What are the Factors of 68?
Answer: Factors of 68 are 1, 2, 4, 17, 34, 68. There are 6 integers that are factors of 68. The greatest factor of 68 is 68.
3. What are the Factors of 76?
Answer: Factors of 76 are 1, 2, 4, 19, 38, 76. There are 6 integers that are factors of 76. The greatest factor of 76 is 76.
4. How to Find the GCF of 68 and 76?
Answer:
Greatest Common Factor of 68 and 76 = 4
Step 1: Find the prime factorization of 68
68 = 2 x 2 x 17
Step 2: Find the prime factorization of 76
76 = 2 x 2 x 19
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 2 = 4
Step 4: Therefore, the greatest common factor of 68 and 76 is 4