What is the Greatest Common Factor of 42003 and 42016?

Greatest common factor (GCF) of 42003 and 42016 is 13.

GCF(42003,42016) = 13

We will now calculate the prime factors of 42003 and 42016, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42003 and 42016.

How to find the GCF of 42003 and 42016?

We will first find the prime factorization of 42003 and 42016. After we will calculate the factors of 42003 and 42016 and find the biggest common factor number .

Step-1: Prime Factorization of 42003

Prime factors of 42003 are 3, 13, 359. Prime factorization of 42003 in exponential form is:

42003 = 3² × 13¹ × 359¹

Step-2: Prime Factorization of 42016

Prime factors of 42016 are 2, 13, 101. Prime factorization of 42016 in exponential form is:

42016 = 2⁵ × 13¹ × 101¹

Step-3: Factors of 42003

List of positive integer factors of 42003 that divides 42003 without a remainder.

1, 3, 9, 13, 39, 117, 359, 1077, 3231, 4667, 14001

Step-4: Factors of 42016

List of positive integer factors of 42016 that divides 42003 without a remainder.

1, 2, 4, 8, 13, 16, 26, 32, 52, 101, 104, 202, 208, 404, 416, 808, 1313, 1616, 2626, 3232, 5252, 10504, 21008

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42003 and 42016. The biggest common factor number is the GCF number.
So the greatest common factor 42003 and 42016 is 13.

Also check out the Least Common Multiple of 42003 and 42016