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 1772, 1780 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1772 and 1780 is 4.
GCF(1772,1780) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1772
2 | 1772 |
2 | 886 |
443 | 443 |
1 |
Prime factors of 1772 are 2,443. Prime factorization of 1772 in exponential form is:
1772 = 22×4431
Prime Factorization of 1780
2 | 1780 |
2 | 890 |
5 | 445 |
89 | 89 |
1 |
Prime factors of 1780 are 2,5,89. Prime factorization of 1780 in exponential form is:
1780 = 22×51×891
∴ So by taking common prime factors GCF of 1772 and 1780 is 4
Factors of 1772
List of positive integer factors of 1772 that divides 1772 without a remainder.
1,2,4,443,886,1772
Factors of 1780
List of positive integer factors of 1780 that divides 1780 without a remainder.
1,2,4,5,10,20,89,178,356,445,890,1780
Greatest Common Factor
We found the factors and prime factorization of 1772 and 1780. The biggest common factor number is the GCF number.
So the greatest common factor 1772 and 1780 is 4.
Also check out the Least Common Multiple of 1772 and 1780
(i) The GCF of 1772 and 1780 is associative
GCF of 1772 and 1780 = GCF of 1780 and 1772
1. What is the GCF of 1772 and 1780?
Answer: GCF of 1772 and 1780 is 4.
2. What are the Factors of 1772?
Answer: Factors of 1772 are 1, 2, 4, 443, 886, 1772. There are 6 integers that are factors of 1772. The greatest factor of 1772 is 1772.
3. What are the Factors of 1780?
Answer: Factors of 1780 are 1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780. There are 12 integers that are factors of 1780. The greatest factor of 1780 is 1780.
4. How to Find the GCF of 1772 and 1780?
Answer:
Greatest Common Factor of 1772 and 1780 = 4
Step 1: Find the prime factorization of 1772
1772 = 2 x 2 x 443
Step 2: Find the prime factorization of 1780
1780 = 2 x 2 x 5 x 89
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 2 = 4
Step 4: Therefore, the greatest common factor of 1772 and 1780 is 4