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 688, 692 i.e. 4 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 688 and 692 is 4.
GCF(688,692) = 4
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 688
2 | 688 |
2 | 344 |
2 | 172 |
2 | 86 |
43 | 43 |
1 |
Prime factors of 688 are 2,43. Prime factorization of 688 in exponential form is:
688 = 24×431
Prime Factorization of 692
2 | 692 |
2 | 346 |
173 | 173 |
1 |
Prime factors of 692 are 2,173. Prime factorization of 692 in exponential form is:
692 = 22×1731
∴ So by taking common prime factors GCF of 688 and 692 is 4
Factors of 688
List of positive integer factors of 688 that divides 688 without a remainder.
1,2,4,8,16,43,86,172,344,688
Factors of 692
List of positive integer factors of 692 that divides 692 without a remainder.
1,2,4,173,346,692
Greatest Common Factor
We found the factors and prime factorization of 688 and 692. The biggest common factor number is the GCF number.
So the greatest common factor 688 and 692 is 4.
Also check out the Least Common Multiple of 688 and 692
(i) The GCF of 688 and 692 is associative
GCF of 688 and 692 = GCF of 692 and 688
1. What is the GCF of 688 and 692?
Answer: GCF of 688 and 692 is 4.
2. What are the Factors of 688?
Answer: Factors of 688 are 1, 2, 4, 8, 16, 43, 86, 172, 344, 688. There are 10 integers that are factors of 688. The greatest factor of 688 is 688.
3. What are the Factors of 692?
Answer: Factors of 692 are 1, 2, 4, 173, 346, 692. There are 6 integers that are factors of 692. The greatest factor of 692 is 692.
4. How to Find the GCF of 688 and 692?
Answer:
Greatest Common Factor of 688 and 692 = 4
Step 1: Find the prime factorization of 688
688 = 2 x 2 x 2 x 2 x 43
Step 2: Find the prime factorization of 692
692 = 2 x 2 x 173
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 688 and 692 is 4