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 1947, 1955 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1947 and 1955 is 1.
GCF(1947,1955) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1947
3 | 1947 |
11 | 649 |
59 | 59 |
1 |
Prime factors of 1947 are 3,11,59. Prime factorization of 1947 in exponential form is:
1947 = 31×111×591
Prime Factorization of 1955
5 | 1955 |
17 | 391 |
23 | 23 |
1 |
Prime factors of 1955 are 5,17,23. Prime factorization of 1955 in exponential form is:
1955 = 51×171×231
∴ So by taking common prime factors GCF of 1947 and 1955 is 1
Factors of 1947
List of positive integer factors of 1947 that divides 1947 without a remainder.
1,3,11,33,59,177,649,1947
Factors of 1955
List of positive integer factors of 1955 that divides 1955 without a remainder.
1,5,17,23,85,115,391,1955
Greatest Common Factor
We found the factors and prime factorization of 1947 and 1955. The biggest common factor number is the GCF number.
So the greatest common factor 1947 and 1955 is 1.
Also check out the Least Common Multiple of 1947 and 1955
(i) The GCF of 1947 and 1955 is associative
GCF of 1947 and 1955 = GCF of 1955 and 1947
1. What is the GCF of 1947 and 1955?
Answer: GCF of 1947 and 1955 is 1.
2. What are the Factors of 1947?
Answer: Factors of 1947 are 1, 3, 11, 33, 59, 177, 649, 1947. There are 8 integers that are factors of 1947. The greatest factor of 1947 is 1947.
3. What are the Factors of 1955?
Answer: Factors of 1955 are 1, 5, 17, 23, 85, 115, 391, 1955. There are 8 integers that are factors of 1955. The greatest factor of 1955 is 1955.
4. How to Find the GCF of 1947 and 1955?
Answer:
Greatest Common Factor of 1947 and 1955 = 1
Step 1: Find the prime factorization of 1947
1947 = 3 x 11 x 59
Step 2: Find the prime factorization of 1955
1955 = 5 x 17 x 23
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = = 1
Step 4: Therefore, the greatest common factor of 1947 and 1955 is 1