What is the Greatest Common Factor of 42456 and 42465?

Greatest common factor (GCF) of 42456 and 42465 is 3.

GCF(42456,42465) = 3

We will now calculate the prime factors of 42456 and 42465, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42456 and 42465.

How to find the GCF of 42456 and 42465?

We will first find the prime factorization of 42456 and 42465. After we will calculate the factors of 42456 and 42465 and find the biggest common factor number .

Step-1: Prime Factorization of 42456

Prime factors of 42456 are 2, 3, 29, 61. Prime factorization of 42456 in exponential form is:

42456 = 2³ × 3¹ × 29¹ × 61¹

Step-2: Prime Factorization of 42465

Prime factors of 42465 are 3, 5, 19, 149. Prime factorization of 42465 in exponential form is:

42465 = 3¹ × 5¹ × 19¹ × 149¹

Step-3: Factors of 42456

List of positive integer factors of 42456 that divides 42456 without a remainder.

1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 61, 87, 116, 122, 174, 183, 232, 244, 348, 366, 488, 696, 732, 1464, 1769, 3538, 5307, 7076, 10614, 14152, 21228

Step-4: Factors of 42465

List of positive integer factors of 42465 that divides 42456 without a remainder.

1, 3, 5, 15, 19, 57, 95, 149, 285, 447, 745, 2235, 2831, 8493, 14155

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42456 and 42465. The biggest common factor number is the GCF number.
So the greatest common factor 42456 and 42465 is 3.

Also check out the Least Common Multiple of 42456 and 42465