What is the Greatest Common Factor of 40670 and 40686?

Greatest common factor (GCF) of 40670 and 40686 is 2.

GCF(40670,40686) = 2

We will now calculate the prime factors of 40670 and 40686, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40670 and 40686.

How to find the GCF of 40670 and 40686?

We will first find the prime factorization of 40670 and 40686. After we will calculate the factors of 40670 and 40686 and find the biggest common factor number .

Step-1: Prime Factorization of 40670

Prime factors of 40670 are 2, 5, 7, 83. Prime factorization of 40670 in exponential form is:

40670 = 2¹ × 5¹ × 7² × 83¹

Step-2: Prime Factorization of 40686

Prime factors of 40686 are 2, 3, 6781. Prime factorization of 40686 in exponential form is:

40686 = 2¹ × 3¹ × 6781¹

Step-3: Factors of 40670

List of positive integer factors of 40670 that divides 40670 without a remainder.

1, 2, 5, 7, 10, 14, 35, 49, 70, 83, 98, 166, 245, 415, 490, 581, 830, 1162, 2905, 4067, 5810, 8134, 20335

Step-4: Factors of 40686

List of positive integer factors of 40686 that divides 40670 without a remainder.

1, 2, 3, 6, 6781, 13562, 20343

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40670 and 40686. The biggest common factor number is the GCF number.
So the greatest common factor 40670 and 40686 is 2.

Also check out the Least Common Multiple of 40670 and 40686