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 7115, 7120 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7115 and 7120 is 5.
GCF(7115,7120) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7115
5 | 7115 |
1423 | 1423 |
1 |
Prime factors of 7115 are 5,1423. Prime factorization of 7115 in exponential form is:
7115 = 51×14231
Prime Factorization of 7120
2 | 7120 |
2 | 3560 |
2 | 1780 |
2 | 890 |
5 | 445 |
89 | 89 |
1 |
Prime factors of 7120 are 2,5,89. Prime factorization of 7120 in exponential form is:
7120 = 24×51×891
∴ So by taking common prime factors GCF of 7115 and 7120 is 5
Factors of 7115
List of positive integer factors of 7115 that divides 7115 without a remainder.
1,5,1423,7115
Factors of 7120
List of positive integer factors of 7120 that divides 7120 without a remainder.
1,2,4,5,8,10,16,20,40,80,89,178,356,445,712,890,1424,1780,3560,7120
Greatest Common Factor
We found the factors and prime factorization of 7115 and 7120. The biggest common factor number is the GCF number.
So the greatest common factor 7115 and 7120 is 5.
Also check out the Least Common Multiple of 7115 and 7120
(i) The GCF of 7115 and 7120 is associative
GCF of 7115 and 7120 = GCF of 7120 and 7115
1. What is the GCF of 7115 and 7120?
Answer: GCF of 7115 and 7120 is 5.
2. What are the Factors of 7115?
Answer: Factors of 7115 are 1, 5, 1423, 7115. There are 4 integers that are factors of 7115. The greatest factor of 7115 is 7115.
3. What are the Factors of 7120?
Answer: Factors of 7120 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120. There are 20 integers that are factors of 7120. The greatest factor of 7120 is 7120.
4. How to Find the GCF of 7115 and 7120?
Answer:
Greatest Common Factor of 7115 and 7120 = 5
Step 1: Find the prime factorization of 7115
7115 = 5 x 1423
Step 2: Find the prime factorization of 7120
7120 = 2 x 2 x 2 x 2 x 5 x 89
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 7115 and 7120 is 5