What is the Greatest Common Factor of 73470 and 73485?

Greatest common factor (GCF) of 73470 and 73485 is 15.

GCF(73470,73485) = 15

We will now calculate the prime factors of 73470 and 73485, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 73470 and 73485.

How to find the GCF of 73470 and 73485?

We will first find the prime factorization of 73470 and 73485. After we will calculate the factors of 73470 and 73485 and find the biggest common factor number .

Step-1: Prime Factorization of 73470

Prime factors of 73470 are 2, 3, 5, 31, 79. Prime factorization of 73470 in exponential form is:

73470 = 2¹ × 3¹ × 5¹ × 31¹ × 79¹

Step-2: Prime Factorization of 73485

Prime factors of 73485 are 3, 5, 23, 71. Prime factorization of 73485 in exponential form is:

73485 = 3² × 5¹ × 23¹ × 71¹

Step-3: Factors of 73470

List of positive integer factors of 73470 that divides 73470 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 79, 93, 155, 158, 186, 237, 310, 395, 465, 474, 790, 930, 1185, 2370, 2449, 4898, 7347, 12245, 14694, 24490, 36735

Step-4: Factors of 73485

List of positive integer factors of 73485 that divides 73470 without a remainder.

1, 3, 5, 9, 15, 23, 45, 69, 71, 115, 207, 213, 345, 355, 639, 1035, 1065, 1633, 3195, 4899, 8165, 14697, 24495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 73470 and 73485. The biggest common factor number is the GCF number.
So the greatest common factor 73470 and 73485 is 15.

Also check out the Least Common Multiple of 73470 and 73485