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 1670, 1678 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1670 and 1678 is 2.
GCF(1670,1678) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1670
2 | 1670 |
5 | 835 |
167 | 167 |
1 |
Prime factors of 1670 are 2,5,167. Prime factorization of 1670 in exponential form is:
1670 = 21×51×1671
Prime Factorization of 1678
2 | 1678 |
839 | 839 |
1 |
Prime factors of 1678 are 2,839. Prime factorization of 1678 in exponential form is:
1678 = 21×8391
∴ So by taking common prime factors GCF of 1670 and 1678 is 2
Factors of 1670
List of positive integer factors of 1670 that divides 1670 without a remainder.
1,2,5,10,167,334,835,1670
Factors of 1678
List of positive integer factors of 1678 that divides 1678 without a remainder.
1,2,839,1678
Greatest Common Factor
We found the factors and prime factorization of 1670 and 1678. The biggest common factor number is the GCF number.
So the greatest common factor 1670 and 1678 is 2.
Also check out the Least Common Multiple of 1670 and 1678
(i) The GCF of 1670 and 1678 is associative
GCF of 1670 and 1678 = GCF of 1678 and 1670
1. What is the GCF of 1670 and 1678?
Answer: GCF of 1670 and 1678 is 2.
2. What are the Factors of 1670?
Answer: Factors of 1670 are 1, 2, 5, 10, 167, 334, 835, 1670. There are 8 integers that are factors of 1670. The greatest factor of 1670 is 1670.
3. What are the Factors of 1678?
Answer: Factors of 1678 are 1, 2, 839, 1678. There are 4 integers that are factors of 1678. The greatest factor of 1678 is 1678.
4. How to Find the GCF of 1670 and 1678?
Answer:
Greatest Common Factor of 1670 and 1678 = 2
Step 1: Find the prime factorization of 1670
1670 = 2 x 5 x 167
Step 2: Find the prime factorization of 1678
1678 = 2 x 839
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 1670 and 1678 is 2