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 1780, 1784 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1780 and 1784 is 4.
GCF(1780,1784) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
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
Prime Factorization of 1784
2 | 1784 |
2 | 892 |
2 | 446 |
223 | 223 |
1 |
Prime factors of 1784 are 2,223. Prime factorization of 1784 in exponential form is:
1784 = 23×2231
∴ So by taking common prime factors GCF of 1780 and 1784 is 4
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
Factors of 1784
List of positive integer factors of 1784 that divides 1784 without a remainder.
1,2,4,8,223,446,892,1784
Greatest Common Factor
We found the factors and prime factorization of 1780 and 1784. The biggest common factor number is the GCF number.
So the greatest common factor 1780 and 1784 is 4.
Also check out the Least Common Multiple of 1780 and 1784
(i) The GCF of 1780 and 1784 is associative
GCF of 1780 and 1784 = GCF of 1784 and 1780
1. What is the GCF of 1780 and 1784?
Answer: GCF of 1780 and 1784 is 4.
2. 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.
3. What are the Factors of 1784?
Answer: Factors of 1784 are 1, 2, 4, 8, 223, 446, 892, 1784. There are 8 integers that are factors of 1784. The greatest factor of 1784 is 1784.
4. How to Find the GCF of 1780 and 1784?
Answer:
Greatest Common Factor of 1780 and 1784 = 4
Step 1: Find the prime factorization of 1780
1780 = 2 x 2 x 5 x 89
Step 2: Find the prime factorization of 1784
1784 = 2 x 2 x 2 x 223
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 1780 and 1784 is 4