What is the Greatest Common Factor of 70521 and 70540?

Greatest common factor (GCF) of 70521 and 70540 is 1.

GCF(70521,70540) = 1

We will now calculate the prime factors of 70521 and 70540, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70521 and 70540.

How to find the GCF of 70521 and 70540?

We will first find the prime factorization of 70521 and 70540. After we will calculate the factors of 70521 and 70540 and find the biggest common factor number .

Step-1: Prime Factorization of 70521

Prime factors of 70521 are 3, 11, 2137. Prime factorization of 70521 in exponential form is:

70521 = 3¹ × 11¹ × 2137¹

Step-2: Prime Factorization of 70540

Prime factors of 70540 are 2, 5, 3527. Prime factorization of 70540 in exponential form is:

70540 = 2² × 5¹ × 3527¹

Step-3: Factors of 70521

List of positive integer factors of 70521 that divides 70521 without a remainder.

1, 3, 11, 33, 2137, 6411, 23507

Step-4: Factors of 70540

List of positive integer factors of 70540 that divides 70521 without a remainder.

1, 2, 4, 5, 10, 20, 3527, 7054, 14108, 17635, 35270

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70521 and 70540. The biggest common factor number is the GCF number.
So the greatest common factor 70521 and 70540 is 1.

Also check out the Least Common Multiple of 70521 and 70540