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 1372, 1380 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1372 and 1380 is 4.
GCF(1372,1380) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1372
2 | 1372 |
2 | 686 |
7 | 343 |
7 | 49 |
7 | 7 |
1 |
Prime factors of 1372 are 2,7. Prime factorization of 1372 in exponential form is:
1372 = 22×73
Prime Factorization of 1380
2 | 1380 |
2 | 690 |
3 | 345 |
5 | 115 |
23 | 23 |
1 |
Prime factors of 1380 are 2,3,5,23. Prime factorization of 1380 in exponential form is:
1380 = 22×31×51×231
∴ So by taking common prime factors GCF of 1372 and 1380 is 4
Factors of 1372
List of positive integer factors of 1372 that divides 1372 without a remainder.
1,2,4,7,14,28,49,98,196,343,686,1372
Factors of 1380
List of positive integer factors of 1380 that divides 1380 without a remainder.
1,2,3,4,5,6,10,12,15,20,23,30,46,60,69,92,115,138,230,276,345,460,690,1380
Greatest Common Factor
We found the factors and prime factorization of 1372 and 1380. The biggest common factor number is the GCF number.
So the greatest common factor 1372 and 1380 is 4.
Also check out the Least Common Multiple of 1372 and 1380
(i) The GCF of 1372 and 1380 is associative
GCF of 1372 and 1380 = GCF of 1380 and 1372
1. What is the GCF of 1372 and 1380?
Answer: GCF of 1372 and 1380 is 4.
2. What are the Factors of 1372?
Answer: Factors of 1372 are 1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372. There are 12 integers that are factors of 1372. The greatest factor of 1372 is 1372.
3. What are the Factors of 1380?
Answer: Factors of 1380 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380. There are 24 integers that are factors of 1380. The greatest factor of 1380 is 1380.
4. How to Find the GCF of 1372 and 1380?
Answer:
Greatest Common Factor of 1372 and 1380 = 4
Step 1: Find the prime factorization of 1372
1372 = 2 x 2 x 7 x 7 x 7
Step 2: Find the prime factorization of 1380
1380 = 2 x 2 x 3 x 5 x 23
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 1372 and 1380 is 4