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 148, 155 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 148 and 155 is 1.
GCF(148,155) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 148
2 | 148 |
2 | 74 |
37 | 37 |
1 |
Prime factors of 148 are 2,37. Prime factorization of 148 in exponential form is:
148 = 22×371
Prime Factorization of 155
5 | 155 |
31 | 31 |
1 |
Prime factors of 155 are 5,31. Prime factorization of 155 in exponential form is:
155 = 51×311
∴ So by taking common prime factors GCF of 148 and 155 is 1
Factors of 148
List of positive integer factors of 148 that divides 148 without a remainder.
1,2,4,37,74,148
Factors of 155
List of positive integer factors of 155 that divides 155 without a remainder.
1,5,31,155
Greatest Common Factor
We found the factors and prime factorization of 148 and 155. The biggest common factor number is the GCF number.
So the greatest common factor 148 and 155 is 1.
Also check out the Least Common Multiple of 148 and 155
(i) The GCF of 148 and 155 is associative
GCF of 148 and 155 = GCF of 155 and 148
1. What is the GCF of 148 and 155?
Answer: GCF of 148 and 155 is 1.
2. What are the Factors of 148?
Answer: Factors of 148 are 1, 2, 4, 37, 74, 148. There are 6 integers that are factors of 148. The greatest factor of 148 is 148.
3. What are the Factors of 155?
Answer: Factors of 155 are 1, 5, 31, 155. There are 4 integers that are factors of 155. The greatest factor of 155 is 155.
4. How to Find the GCF of 148 and 155?
Answer:
Greatest Common Factor of 148 and 155 = 1
Step 1: Find the prime factorization of 148
148 = 2 x 2 x 37
Step 2: Find the prime factorization of 155
155 = 5 x 31
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 148 and 155 is 1