Greatest Common Factor of 139 and 145

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

• Greatest Common Factor of 139 and 145 by prime factorization method
• Greatest Common Factor of 139 and 145 by matching factors method

Prime Factorization of 139

Prime factors of 139 are 139. Prime factorization of 139 in exponential form is:

139 = 139¹

Prime Factorization of 145

Prime factors of 145 are 5.Prime factorization of 145 in exponential form is:

145 = 5¹×29¹

∴ So by taking common prime factors GCF of 139 and 145 is 1

Factors of 139

List of positive integer factors of 139 that divides 139 without a remainder.

1,139

Factors of 145

List of positive integer factors of 145 that divides 145 without a remainder.

1,5,29,145

Greatest Common Factor

We found the factors and prime factorization of 139 and 145. The biggest common factor number is the GCF number.
So the greatest common factor 139 and 145 is 1.

Also check out the Least Common Multiple of 139 and 145

(i) The GCF of 139 and 145 is associative

GCF of 139 and 145 = GCF of 145 and 139

1. What is the GCF of 139 and 145?

Answer: GCF of 139 and 145 is 1.

2. What are the Factors of 139?

Answer: Factors of 139 are 1, 139. There are 2 integers that are factors of 139. The greatest factor of 139 is 139.

3. What are the Factors of 145?

Answer: Factors of 145 are 1, 5, 29, 145. There are 4 integers that are factors of 145. The greatest factor of 145 is 145.

4. How to Find the GCF of 139 and 145?

Answer:

Greatest Common Factor of 139 and 145 = 1

Step 1: Find the prime factorization of 139

139 = 139

Step 2: Find the prime factorization of 145

145 = 5 x 29

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 139 and 145 is 1