What is the Greatest Common Factor of 70203 and 70221?

Greatest common factor (GCF) of 70203 and 70221 is 3.

GCF(70203,70221) = 3

We will now calculate the prime factors of 70203 and 70221, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70203 and 70221.

How to find the GCF of 70203 and 70221?

We will first find the prime factorization of 70203 and 70221. After we will calculate the factors of 70203 and 70221 and find the biggest common factor number .

Step-1: Prime Factorization of 70203

Prime factors of 70203 are 3, 7, 3343. Prime factorization of 70203 in exponential form is:

70203 = 3¹ × 7¹ × 3343¹

Step-2: Prime Factorization of 70221

Prime factors of 70221 are 3, 89, 263. Prime factorization of 70221 in exponential form is:

70221 = 3¹ × 89¹ × 263¹

Step-3: Factors of 70203

List of positive integer factors of 70203 that divides 70203 without a remainder.

1, 3, 7, 21, 3343, 10029, 23401

Step-4: Factors of 70221

List of positive integer factors of 70221 that divides 70203 without a remainder.

1, 3, 89, 263, 267, 789, 23407

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70203 and 70221. The biggest common factor number is the GCF number.
So the greatest common factor 70203 and 70221 is 3.

Also check out the Least Common Multiple of 70203 and 70221