What is the Greatest Common Factor of 10821 and 10840?

Greatest common factor (GCF) of 10821 and 10840 is 1.

GCF(10821,10840) = 1

We will now calculate the prime factors of 10821 and 10840, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10821 and 10840.

How to find the GCF of 10821 and 10840?

We will first find the prime factorization of 10821 and 10840. After we will calculate the factors of 10821 and 10840 and find the biggest common factor number .

Step-1: Prime Factorization of 10821

Prime factors of 10821 are 3, 3607. Prime factorization of 10821 in exponential form is:

10821 = 3¹ × 3607¹

Step-2: Prime Factorization of 10840

Prime factors of 10840 are 2, 5, 271. Prime factorization of 10840 in exponential form is:

10840 = 2³ × 5¹ × 271¹

Step-3: Factors of 10821

List of positive integer factors of 10821 that divides 10821 without a remainder.

1, 3, 3607

Step-4: Factors of 10840

List of positive integer factors of 10840 that divides 10821 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 10821 and 10840. The biggest common factor number is the GCF number.
So the greatest common factor 10821 and 10840 is 1.

Also check out the Least Common Multiple of 10821 and 10840