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 280, 288 i.e. 8 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 280 and 288 is 8.
GCF(280,288) = 8
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 280
2 | 280 |
2 | 140 |
2 | 70 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 280 are 2,5,7. Prime factorization of 280 in exponential form is:
280 = 23×51×71
Prime Factorization of 288
2 | 288 |
2 | 144 |
2 | 72 |
2 | 36 |
2 | 18 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 288 are 2,3. Prime factorization of 288 in exponential form is:
288 = 25×32
∴ So by taking common prime factors GCF of 280 and 288 is 8
Factors of 280
List of positive integer factors of 280 that divides 280 without a remainder.
1,2,4,5,7,8,10,14,20,28,35,40,56,70,140,280
Factors of 288
List of positive integer factors of 288 that divides 288 without a remainder.
1,2,3,4,6,8,9,12,16,18,24,32,36,48,72,96,144,288
Greatest Common Factor
We found the factors and prime factorization of 280 and 288. The biggest common factor number is the GCF number.
So the greatest common factor 280 and 288 is 8.
Also check out the Least Common Multiple of 280 and 288
(i) The GCF of 280 and 288 is associative
GCF of 280 and 288 = GCF of 288 and 280
1. What is the GCF of 280 and 288?
Answer: GCF of 280 and 288 is 8.
2. What are the Factors of 280?
Answer: Factors of 280 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280. There are 16 integers that are factors of 280. The greatest factor of 280 is 280.
3. What are the Factors of 288?
Answer: Factors of 288 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288. There are 18 integers that are factors of 288. The greatest factor of 288 is 288.
4. How to Find the GCF of 280 and 288?
Answer:
Greatest Common Factor of 280 and 288 = 8
Step 1: Find the prime factorization of 280
280 = 2 x 2 x 2 x 5 x 7
Step 2: Find the prime factorization of 288
288 = 2 x 2 x 2 x 2 x 2 x 3 x 3
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 2 x 2 = 8
Step 4: Therefore, the greatest common factor of 280 and 288 is 8