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 7638, 7646 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7638 and 7646 is 2.
GCF(7638,7646) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7638
2 | 7638 |
3 | 3819 |
19 | 1273 |
67 | 67 |
1 |
Prime factors of 7638 are 2,3,19,67. Prime factorization of 7638 in exponential form is:
7638 = 21×31×191×671
Prime Factorization of 7646
2 | 7646 |
3823 | 3823 |
1 |
Prime factors of 7646 are 2,3823. Prime factorization of 7646 in exponential form is:
7646 = 21×38231
∴ So by taking common prime factors GCF of 7638 and 7646 is 2
Factors of 7638
List of positive integer factors of 7638 that divides 7638 without a remainder.
1,2,3,6,19,38,57,67,114,134,201,402,1273,2546,3819,7638
Factors of 7646
List of positive integer factors of 7646 that divides 7646 without a remainder.
1,2,3823,7646
Greatest Common Factor
We found the factors and prime factorization of 7638 and 7646. The biggest common factor number is the GCF number.
So the greatest common factor 7638 and 7646 is 2.
Also check out the Least Common Multiple of 7638 and 7646
(i) The GCF of 7638 and 7646 is associative
GCF of 7638 and 7646 = GCF of 7646 and 7638
1. What is the GCF of 7638 and 7646?
Answer: GCF of 7638 and 7646 is 2.
2. What are the Factors of 7638?
Answer: Factors of 7638 are 1, 2, 3, 6, 19, 38, 57, 67, 114, 134, 201, 402, 1273, 2546, 3819, 7638. There are 16 integers that are factors of 7638. The greatest factor of 7638 is 7638.
3. What are the Factors of 7646?
Answer: Factors of 7646 are 1, 2, 3823, 7646. There are 4 integers that are factors of 7646. The greatest factor of 7646 is 7646.
4. How to Find the GCF of 7638 and 7646?
Answer:
Greatest Common Factor of 7638 and 7646 = 2
Step 1: Find the prime factorization of 7638
7638 = 2 x 3 x 19 x 67
Step 2: Find the prime factorization of 7646
7646 = 2 x 3823
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 7638 and 7646 is 2