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 140, 153 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 140 and 153 is 1.
GCF(140,153) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 140
2 | 140 |
2 | 70 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 140 are 2,5,7. Prime factorization of 140 in exponential form is:
140 = 22×51×71
Prime Factorization of 153
3 | 153 |
3 | 51 |
17 | 17 |
1 |
Prime factors of 153 are 3,17. Prime factorization of 153 in exponential form is:
153 = 32×171
∴ So by taking common prime factors GCF of 140 and 153 is 1
Factors of 140
List of positive integer factors of 140 that divides 140 without a remainder.
1,2,4,5,7,10,14,20,28,35,70,140
Factors of 153
List of positive integer factors of 153 that divides 153 without a remainder.
1,3,9,17,51,153
Greatest Common Factor
We found the factors and prime factorization of 140 and 153. The biggest common factor number is the GCF number.
So the greatest common factor 140 and 153 is 1.
Also check out the Least Common Multiple of 140 and 153
(i) The GCF of 140 and 153 is associative
GCF of 140 and 153 = GCF of 153 and 140
1. What is the GCF of 140 and 153?
Answer: GCF of 140 and 153 is 1.
2. What are the Factors of 140?
Answer: Factors of 140 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140. There are 12 integers that are factors of 140. The greatest factor of 140 is 140.
3. What are the Factors of 153?
Answer: Factors of 153 are 1, 3, 9, 17, 51, 153. There are 6 integers that are factors of 153. The greatest factor of 153 is 153.
4. How to Find the GCF of 140 and 153?
Answer:
Greatest Common Factor of 140 and 153 = 1
Step 1: Find the prime factorization of 140
140 = 2 x 2 x 5 x 7
Step 2: Find the prime factorization of 153
153 = 3 x 3 x 17
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = = 1
Step 4: Therefore, the greatest common factor of 140 and 153 is 1