What is the Greatest Common Factor of 71903 and 71920?

Greatest common factor (GCF) of 71903 and 71920 is 1.

GCF(71903,71920) = 1

We will now calculate the prime factors of 71903 and 71920, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71903 and 71920.

How to find the GCF of 71903 and 71920?

We will first find the prime factorization of 71903 and 71920. After we will calculate the factors of 71903 and 71920 and find the biggest common factor number .

Step-1: Prime Factorization of 71903

Prime factors of 71903 are 13, 5531. Prime factorization of 71903 in exponential form is:

71903 = 13¹ × 5531¹

Step-2: Prime Factorization of 71920

Prime factors of 71920 are 2, 5, 29, 31. Prime factorization of 71920 in exponential form is:

71920 = 2⁴ × 5¹ × 29¹ × 31¹

Step-3: Factors of 71903

List of positive integer factors of 71903 that divides 71903 without a remainder.

1, 13, 5531

Step-4: Factors of 71920

List of positive integer factors of 71920 that divides 71903 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 464, 496, 580, 620, 899, 1160, 1240, 1798, 2320, 2480, 3596, 4495, 7192, 8990, 14384, 17980, 35960

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71903 and 71920. The biggest common factor number is the GCF number.
So the greatest common factor 71903 and 71920 is 1.

Also check out the Least Common Multiple of 71903 and 71920