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 1970, 1975 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1970 and 1975 is 5.
GCF(1970,1975) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1970
2 | 1970 |
5 | 985 |
197 | 197 |
1 |
Prime factors of 1970 are 2,5,197. Prime factorization of 1970 in exponential form is:
1970 = 21×51×1971
Prime Factorization of 1975
5 | 1975 |
5 | 395 |
79 | 79 |
1 |
Prime factors of 1975 are 5,79. Prime factorization of 1975 in exponential form is:
1975 = 52×791
∴ So by taking common prime factors GCF of 1970 and 1975 is 5
Factors of 1970
List of positive integer factors of 1970 that divides 1970 without a remainder.
1,2,5,10,197,394,985,1970
Factors of 1975
List of positive integer factors of 1975 that divides 1975 without a remainder.
1,5,25,79,395,1975
Greatest Common Factor
We found the factors and prime factorization of 1970 and 1975. The biggest common factor number is the GCF number.
So the greatest common factor 1970 and 1975 is 5.
Also check out the Least Common Multiple of 1970 and 1975
(i) The GCF of 1970 and 1975 is associative
GCF of 1970 and 1975 = GCF of 1975 and 1970
1. What is the GCF of 1970 and 1975?
Answer: GCF of 1970 and 1975 is 5.
2. What are the Factors of 1970?
Answer: Factors of 1970 are 1, 2, 5, 10, 197, 394, 985, 1970. There are 8 integers that are factors of 1970. The greatest factor of 1970 is 1970.
3. What are the Factors of 1975?
Answer: Factors of 1975 are 1, 5, 25, 79, 395, 1975. There are 6 integers that are factors of 1975. The greatest factor of 1975 is 1975.
4. How to Find the GCF of 1970 and 1975?
Answer:
Greatest Common Factor of 1970 and 1975 = 5
Step 1: Find the prime factorization of 1970
1970 = 2 x 5 x 197
Step 2: Find the prime factorization of 1975
1975 = 5 x 5 x 79
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 1970 and 1975 is 5