What is the Greatest Common Factor of 84210 and 84220?

Greatest common factor (GCF) of 84210 and 84220 is 10.

GCF(84210,84220) = 10

We will now calculate the prime factors of 84210 and 84220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 84210 and 84220.

How to find the GCF of 84210 and 84220?

We will first find the prime factorization of 84210 and 84220. After we will calculate the factors of 84210 and 84220 and find the biggest common factor number .

Step-1: Prime Factorization of 84210

Prime factors of 84210 are 2, 3, 5, 7, 401. Prime factorization of 84210 in exponential form is:

84210 = 2¹ × 3¹ × 5¹ × 7¹ × 401¹

Step-2: Prime Factorization of 84220

Prime factors of 84220 are 2, 5, 4211. Prime factorization of 84220 in exponential form is:

84220 = 2² × 5¹ × 4211¹

Step-3: Factors of 84210

List of positive integer factors of 84210 that divides 84210 without a remainder.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 401, 802, 1203, 2005, 2406, 2807, 4010, 5614, 6015, 8421, 12030, 14035, 16842, 28070, 42105

Step-4: Factors of 84220

List of positive integer factors of 84220 that divides 84210 without a remainder.

1, 2, 4, 5, 10, 20, 4211, 8422, 16844, 21055, 42110

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 84210 and 84220. The biggest common factor number is the GCF number.
So the greatest common factor 84210 and 84220 is 10.

Also check out the Least Common Multiple of 84210 and 84220