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 70, 76 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 70 and 76 is 2.
GCF(70,76) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 70
2 | 70 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 70 are 2,5,7. Prime factorization of 70 in exponential form is:
70 = 21×51×71
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 70 and 76 is 2
Factors of 70
List of positive integer factors of 70 that divides 70 without a remainder.
1,2,5,7,10,14,35,70
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 70 and 76. The biggest common factor number is the GCF number.
So the greatest common factor 70 and 76 is 2.
Also check out the Least Common Multiple of 70 and 76
(i) The GCF of 70 and 76 is associative
GCF of 70 and 76 = GCF of 76 and 70
1. What is the GCF of 70 and 76?
Answer: GCF of 70 and 76 is 2.
2. What are the Factors of 70?
Answer: Factors of 70 are 1, 2, 5, 7, 10, 14, 35, 70. There are 8 integers that are factors of 70. The greatest factor of 70 is 70.
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 70 and 76?
Answer:
Greatest Common Factor of 70 and 76 = 2
Step 1: Find the prime factorization of 70
70 = 2 x 5 x 7
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
Step 4: Therefore, the greatest common factor of 70 and 76 is 2