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 3939, 3945 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 3939 and 3945 is 3.
GCF(3939,3945) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 3939
3 | 3939 |
13 | 1313 |
101 | 101 |
1 |
Prime factors of 3939 are 3,13,101. Prime factorization of 3939 in exponential form is:
3939 = 31×131×1011
Prime Factorization of 3945
3 | 3945 |
5 | 1315 |
263 | 263 |
1 |
Prime factors of 3945 are 3,5,263. Prime factorization of 3945 in exponential form is:
3945 = 31×51×2631
∴ So by taking common prime factors GCF of 3939 and 3945 is 3
Factors of 3939
List of positive integer factors of 3939 that divides 3939 without a remainder.
1,3,13,39,101,303,1313,3939
Factors of 3945
List of positive integer factors of 3945 that divides 3945 without a remainder.
1,3,5,15,263,789,1315,3945
Greatest Common Factor
We found the factors and prime factorization of 3939 and 3945. The biggest common factor number is the GCF number.
So the greatest common factor 3939 and 3945 is 3.
Also check out the Least Common Multiple of 3939 and 3945
(i) The GCF of 3939 and 3945 is associative
GCF of 3939 and 3945 = GCF of 3945 and 3939
1. What is the GCF of 3939 and 3945?
Answer: GCF of 3939 and 3945 is 3.
2. What are the Factors of 3939?
Answer: Factors of 3939 are 1, 3, 13, 39, 101, 303, 1313, 3939. There are 8 integers that are factors of 3939. The greatest factor of 3939 is 3939.
3. What are the Factors of 3945?
Answer: Factors of 3945 are 1, 3, 5, 15, 263, 789, 1315, 3945. There are 8 integers that are factors of 3945. The greatest factor of 3945 is 3945.
4. How to Find the GCF of 3939 and 3945?
Answer:
Greatest Common Factor of 3939 and 3945 = 3
Step 1: Find the prime factorization of 3939
3939 = 3 x 13 x 101
Step 2: Find the prime factorization of 3945
3945 = 3 x 5 x 263
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 3939 and 3945 is 3