What is the Greatest Common Factor of 72040 and 72045?

Greatest common factor (GCF) of 72040 and 72045 is 5.

GCF(72040,72045) = 5

We will now calculate the prime factors of 72040 and 72045, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72040 and 72045.

How to find the GCF of 72040 and 72045?

We will first find the prime factorization of 72040 and 72045. After we will calculate the factors of 72040 and 72045 and find the biggest common factor number .

Step-1: Prime Factorization of 72040

Prime factors of 72040 are 2, 5, 1801. Prime factorization of 72040 in exponential form is:

72040 = 2³ × 5¹ × 1801¹

Step-2: Prime Factorization of 72045

Prime factors of 72045 are 3, 5, 1601. Prime factorization of 72045 in exponential form is:

72045 = 3² × 5¹ × 1601¹

Step-3: Factors of 72040

List of positive integer factors of 72040 that divides 72040 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1801, 3602, 7204, 9005, 14408, 18010, 36020

Step-4: Factors of 72045

List of positive integer factors of 72045 that divides 72040 without a remainder.

1, 3, 5, 9, 15, 45, 1601, 4803, 8005, 14409, 24015

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72040 and 72045. The biggest common factor number is the GCF number.
So the greatest common factor 72040 and 72045 is 5.

Also check out the Least Common Multiple of 72040 and 72045