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 8815, 8820 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 8815 and 8820 is 5.
GCF(8815,8820) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 8815
5 | 8815 |
41 | 1763 |
43 | 43 |
1 |
Prime factors of 8815 are 5,41,43. Prime factorization of 8815 in exponential form is:
8815 = 51×411×431
Prime Factorization of 8820
2 | 8820 |
2 | 4410 |
3 | 2205 |
3 | 735 |
5 | 245 |
7 | 49 |
7 | 7 |
1 |
Prime factors of 8820 are 2,3,5,7. Prime factorization of 8820 in exponential form is:
8820 = 22×32×51×72
∴ So by taking common prime factors GCF of 8815 and 8820 is 5
Factors of 8815
List of positive integer factors of 8815 that divides 8815 without a remainder.
1,5,41,43,205,215,1763,8815
Factors of 8820
List of positive integer factors of 8820 that divides 8820 without a remainder.
1,2,3,4,5,6,7,9,10,12,14,15,18,20,21,28,30,35,36,42,45,49,60,63,70,84,90,98,105,126,140,147,180,196,210,245,252,294,315,420,441,490,588,630,735,882,980,1260,1470,1764,2205,2940,4410,8820
Greatest Common Factor
We found the factors and prime factorization of 8815 and 8820. The biggest common factor number is the GCF number.
So the greatest common factor 8815 and 8820 is 5.
Also check out the Least Common Multiple of 8815 and 8820
(i) The GCF of 8815 and 8820 is associative
GCF of 8815 and 8820 = GCF of 8820 and 8815
1. What is the GCF of 8815 and 8820?
Answer: GCF of 8815 and 8820 is 5.
2. What are the Factors of 8815?
Answer: Factors of 8815 are 1, 5, 41, 43, 205, 215, 1763, 8815. There are 8 integers that are factors of 8815. The greatest factor of 8815 is 8815.
3. What are the Factors of 8820?
Answer: Factors of 8820 are 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820. There are 54 integers that are factors of 8820. The greatest factor of 8820 is 8820.
4. How to Find the GCF of 8815 and 8820?
Answer:
Greatest Common Factor of 8815 and 8820 = 5
Step 1: Find the prime factorization of 8815
8815 = 5 x 41 x 43
Step 2: Find the prime factorization of 8820
8820 = 2 x 2 x 3 x 3 x 5 x 7 x 7
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 8815 and 8820 is 5