What is the Greatest Common Factor of 70470 and 70478?

Greatest common factor (GCF) of 70470 and 70478 is 2.

GCF(70470,70478) = 2

We will now calculate the prime factors of 70470 and 70478, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70470 and 70478.

How to find the GCF of 70470 and 70478?

We will first find the prime factorization of 70470 and 70478. After we will calculate the factors of 70470 and 70478 and find the biggest common factor number .

Step-1: Prime Factorization of 70470

Prime factors of 70470 are 2, 3, 5, 29. Prime factorization of 70470 in exponential form is:

70470 = 2¹ × 3⁵ × 5¹ × 29¹

Step-2: Prime Factorization of 70478

Prime factors of 70478 are 2, 131, 269. Prime factorization of 70478 in exponential form is:

70478 = 2¹ × 131¹ × 269¹

Step-3: Factors of 70470

List of positive integer factors of 70470 that divides 70470 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 243, 261, 270, 290, 405, 435, 486, 522, 783, 810, 870, 1215, 1305, 1566, 2349, 2430, 2610, 3915, 4698, 7047, 7830, 11745, 14094, 23490, 35235

Step-4: Factors of 70478

List of positive integer factors of 70478 that divides 70470 without a remainder.

1, 2, 131, 262, 269, 538, 35239

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70470 and 70478. The biggest common factor number is the GCF number.
So the greatest common factor 70470 and 70478 is 2.

Also check out the Least Common Multiple of 70470 and 70478