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 840, 848 i.e. 8 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 840 and 848 is 8.
GCF(840,848) = 8
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 840
2 | 840 |
2 | 420 |
2 | 210 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 840 are 2,3,5,7. Prime factorization of 840 in exponential form is:
840 = 23×31×51×71
Prime Factorization of 848
2 | 848 |
2 | 424 |
2 | 212 |
2 | 106 |
53 | 53 |
1 |
Prime factors of 848 are 2,53. Prime factorization of 848 in exponential form is:
848 = 24×531
∴ So by taking common prime factors GCF of 840 and 848 is 8
Factors of 840
List of positive integer factors of 840 that divides 840 without a remainder.
1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840
Factors of 848
List of positive integer factors of 848 that divides 848 without a remainder.
1,2,4,8,16,53,106,212,424,848
Greatest Common Factor
We found the factors and prime factorization of 840 and 848. The biggest common factor number is the GCF number.
So the greatest common factor 840 and 848 is 8.
Also check out the Least Common Multiple of 840 and 848
(i) The GCF of 840 and 848 is associative
GCF of 840 and 848 = GCF of 848 and 840
1. What is the GCF of 840 and 848?
Answer: GCF of 840 and 848 is 8.
2. What are the Factors of 840?
Answer: Factors of 840 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840. There are 32 integers that are factors of 840. The greatest factor of 840 is 840.
3. What are the Factors of 848?
Answer: Factors of 848 are 1, 2, 4, 8, 16, 53, 106, 212, 424, 848. There are 10 integers that are factors of 848. The greatest factor of 848 is 848.
4. How to Find the GCF of 840 and 848?
Answer:
Greatest Common Factor of 840 and 848 = 8
Step 1: Find the prime factorization of 840
840 = 2 x 2 x 2 x 3 x 5 x 7
Step 2: Find the prime factorization of 848
848 = 2 x 2 x 2 x 2 x 53
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 840 and 848 is 8