What is the Greatest Common Factor of 2840 and 2858?

Greatest common factor (GCF) of 2840 and 2858 is 2.

GCF(2840,2858) = 2

We will now calculate the prime factors of 2840 and 2858, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2840 and 2858.

How to find the GCF of 2840 and 2858?

We will first find the prime factorization of 2840 and 2858. After we will calculate the factors of 2840 and 2858 and find the biggest common factor number .

Step-1: Prime Factorization of 2840

Prime factors of 2840 are 2, 5, 71. Prime factorization of 2840 in exponential form is:

2840 = 2³ × 5¹ × 71¹

Step-2: Prime Factorization of 2858

Prime factors of 2858 are 2, 1429. Prime factorization of 2858 in exponential form is:

2858 = 2¹ × 1429¹

Step-3: Factors of 2840

List of positive integer factors of 2840 that divides 2840 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420

Step-4: Factors of 2858

List of positive integer factors of 2858 that divides 2840 without a remainder.

1, 2, 1429

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2840 and 2858. The biggest common factor number is the GCF number.
So the greatest common factor 2840 and 2858 is 2.

Also check out the Least Common Multiple of 2840 and 2858