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 1561, 1567 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1561 and 1567 is 1.
GCF(1561,1567) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1561
7 | 1561 |
223 | 223 |
1 |
Prime factors of 1561 are 7,223. Prime factorization of 1561 in exponential form is:
1561 = 71×2231
Prime Factorization of 1567
1567 | 1567 |
1 |
Prime factors of 1567 are 1567. Prime factorization of 1567 in exponential form is:
1567 = 15671
∴ So by taking common prime factors GCF of 1561 and 1567 is 1
Factors of 1561
List of positive integer factors of 1561 that divides 1561 without a remainder.
1,7,223,1561
Factors of 1567
List of positive integer factors of 1567 that divides 1567 without a remainder.
1,1567
Greatest Common Factor
We found the factors and prime factorization of 1561 and 1567. The biggest common factor number is the GCF number.
So the greatest common factor 1561 and 1567 is 1.
Also check out the Least Common Multiple of 1561 and 1567
(i) The GCF of 1561 and 1567 is associative
GCF of 1561 and 1567 = GCF of 1567 and 1561
1. What is the GCF of 1561 and 1567?
Answer: GCF of 1561 and 1567 is 1.
2. What are the Factors of 1561?
Answer: Factors of 1561 are 1, 7, 223, 1561. There are 4 integers that are factors of 1561. The greatest factor of 1561 is 1561.
3. What are the Factors of 1567?
Answer: Factors of 1567 are 1, 1567. There are 2 integers that are factors of 1567. The greatest factor of 1567 is 1567.
4. How to Find the GCF of 1561 and 1567?
Answer:
Greatest Common Factor of 1561 and 1567 = 1
Step 1: Find the prime factorization of 1561
1561 = 7 x 223
Step 2: Find the prime factorization of 1567
1567 = 1567
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 1561 and 1567 is 1