What is the Greatest Common Factor of 70760 and 70780?

Greatest common factor (GCF) of 70760 and 70780 is 20.

GCF(70760,70780) = 20

We will now calculate the prime factors of 70760 and 70780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70760 and 70780.

How to find the GCF of 70760 and 70780?

We will first find the prime factorization of 70760 and 70780. After we will calculate the factors of 70760 and 70780 and find the biggest common factor number .

Step-1: Prime Factorization of 70760

Prime factors of 70760 are 2, 5, 29, 61. Prime factorization of 70760 in exponential form is:

70760 = 2³ × 5¹ × 29¹ × 61¹

Step-2: Prime Factorization of 70780

Prime factors of 70780 are 2, 5, 3539. Prime factorization of 70780 in exponential form is:

70780 = 2² × 5¹ × 3539¹

Step-3: Factors of 70760

List of positive integer factors of 70760 that divides 70760 without a remainder.

1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 61, 116, 122, 145, 232, 244, 290, 305, 488, 580, 610, 1160, 1220, 1769, 2440, 3538, 7076, 8845, 14152, 17690, 35380

Step-4: Factors of 70780

List of positive integer factors of 70780 that divides 70760 without a remainder.

1, 2, 4, 5, 10, 20, 3539, 7078, 14156, 17695, 35390

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70760 and 70780. The biggest common factor number is the GCF number.
So the greatest common factor 70760 and 70780 is 20.

Also check out the Least Common Multiple of 70760 and 70780