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 768, 772 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 768 and 772 is 4.
GCF(768,772) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 768
2 | 768 |
2 | 384 |
2 | 192 |
2 | 96 |
2 | 48 |
2 | 24 |
2 | 12 |
2 | 6 |
3 | 3 |
1 |
Prime factors of 768 are 2,3. Prime factorization of 768 in exponential form is:
768 = 28×31
Prime Factorization of 772
2 | 772 |
2 | 386 |
193 | 193 |
1 |
Prime factors of 772 are 2,193. Prime factorization of 772 in exponential form is:
772 = 22×1931
∴ So by taking common prime factors GCF of 768 and 772 is 4
Factors of 768
List of positive integer factors of 768 that divides 768 without a remainder.
1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,256,384,768
Factors of 772
List of positive integer factors of 772 that divides 772 without a remainder.
1,2,4,193,386,772
Greatest Common Factor
We found the factors and prime factorization of 768 and 772. The biggest common factor number is the GCF number.
So the greatest common factor 768 and 772 is 4.
Also check out the Least Common Multiple of 768 and 772
(i) The GCF of 768 and 772 is associative
GCF of 768 and 772 = GCF of 772 and 768
1. What is the GCF of 768 and 772?
Answer: GCF of 768 and 772 is 4.
2. What are the Factors of 768?
Answer: Factors of 768 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768. There are 18 integers that are factors of 768. The greatest factor of 768 is 768.
3. What are the Factors of 772?
Answer: Factors of 772 are 1, 2, 4, 193, 386, 772. There are 6 integers that are factors of 772. The greatest factor of 772 is 772.
4. How to Find the GCF of 768 and 772?
Answer:
Greatest Common Factor of 768 and 772 = 4
Step 1: Find the prime factorization of 768
768 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3
Step 2: Find the prime factorization of 772
772 = 2 x 2 x 193
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 768 and 772 is 4