What is the Greatest Common Factor of 70505 and 70520?

Greatest common factor (GCF) of 70505 and 70520 is 5.

GCF(70505,70520) = 5

We will now calculate the prime factors of 70505 and 70520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70505 and 70520.

How to find the GCF of 70505 and 70520?

We will first find the prime factorization of 70505 and 70520. After we will calculate the factors of 70505 and 70520 and find the biggest common factor number .

Step-1: Prime Factorization of 70505

Prime factors of 70505 are 5, 59, 239. Prime factorization of 70505 in exponential form is:

70505 = 5¹ × 59¹ × 239¹

Step-2: Prime Factorization of 70520

Prime factors of 70520 are 2, 5, 41, 43. Prime factorization of 70520 in exponential form is:

70520 = 2³ × 5¹ × 41¹ × 43¹

Step-3: Factors of 70505

List of positive integer factors of 70505 that divides 70505 without a remainder.

1, 5, 59, 239, 295, 1195, 14101

Step-4: Factors of 70520

List of positive integer factors of 70520 that divides 70505 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 820, 860, 1640, 1720, 1763, 3526, 7052, 8815, 14104, 17630, 35260

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70505 and 70520. The biggest common factor number is the GCF number.
So the greatest common factor 70505 and 70520 is 5.

Also check out the Least Common Multiple of 70505 and 70520