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 220, 224 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 220 and 224 is 4.
GCF(220,224) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 220
2 | 220 |
2 | 110 |
5 | 55 |
11 | 11 |
1 |
Prime factors of 220 are 2,5,11. Prime factorization of 220 in exponential form is:
220 = 22×51×111
Prime Factorization of 224
2 | 224 |
2 | 112 |
2 | 56 |
2 | 28 |
2 | 14 |
7 | 7 |
1 |
Prime factors of 224 are 2,7. Prime factorization of 224 in exponential form is:
224 = 25×71
∴ So by taking common prime factors GCF of 220 and 224 is 4
Factors of 220
List of positive integer factors of 220 that divides 220 without a remainder.
1,2,4,5,10,11,20,22,44,55,110,220
Factors of 224
List of positive integer factors of 224 that divides 224 without a remainder.
1,2,4,7,8,14,16,28,32,56,112,224
Greatest Common Factor
We found the factors and prime factorization of 220 and 224. The biggest common factor number is the GCF number.
So the greatest common factor 220 and 224 is 4.
Also check out the Least Common Multiple of 220 and 224
(i) The GCF of 220 and 224 is associative
GCF of 220 and 224 = GCF of 224 and 220
1. What is the GCF of 220 and 224?
Answer: GCF of 220 and 224 is 4.
2. What are the Factors of 220?
Answer: Factors of 220 are 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220. There are 12 integers that are factors of 220. The greatest factor of 220 is 220.
3. What are the Factors of 224?
Answer: Factors of 224 are 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224. There are 12 integers that are factors of 224. The greatest factor of 224 is 224.
4. How to Find the GCF of 220 and 224?
Answer:
Greatest Common Factor of 220 and 224 = 4
Step 1: Find the prime factorization of 220
220 = 2 x 2 x 5 x 11
Step 2: Find the prime factorization of 224
224 = 2 x 2 x 2 x 2 x 2 x 7
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 220 and 224 is 4