What is the Greatest Common Factor of 68840 and 68858?

Greatest common factor (GCF) of 68840 and 68858 is 2.

GCF(68840,68858) = 2

We will now calculate the prime factors of 68840 and 68858, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68840 and 68858.

How to find the GCF of 68840 and 68858?

We will first find the prime factorization of 68840 and 68858. After we will calculate the factors of 68840 and 68858 and find the biggest common factor number .

Step-1: Prime Factorization of 68840

Prime factors of 68840 are 2, 5, 1721. Prime factorization of 68840 in exponential form is:

68840 = 2³ × 5¹ × 1721¹

Step-2: Prime Factorization of 68858

Prime factors of 68858 are 2, 34429. Prime factorization of 68858 in exponential form is:

68858 = 2¹ × 34429¹

Step-3: Factors of 68840

List of positive integer factors of 68840 that divides 68840 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1721, 3442, 6884, 8605, 13768, 17210, 34420

Step-4: Factors of 68858

List of positive integer factors of 68858 that divides 68840 without a remainder.

1, 2, 34429

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68840 and 68858. The biggest common factor number is the GCF number.
So the greatest common factor 68840 and 68858 is 2.

Also check out the Least Common Multiple of 68840 and 68858