What is the Greatest Common Factor of 40078 and 40090?

Greatest common factor (GCF) of 40078 and 40090 is 2.

GCF(40078,40090) = 2

We will now calculate the prime factors of 40078 and 40090, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40078 and 40090.

How to find the GCF of 40078 and 40090?

We will first find the prime factorization of 40078 and 40090. After we will calculate the factors of 40078 and 40090 and find the biggest common factor number .

Step-1: Prime Factorization of 40078

Prime factors of 40078 are 2, 29, 691. Prime factorization of 40078 in exponential form is:

40078 = 2¹ × 29¹ × 691¹

Step-2: Prime Factorization of 40090

Prime factors of 40090 are 2, 5, 19, 211. Prime factorization of 40090 in exponential form is:

40090 = 2¹ × 5¹ × 19¹ × 211¹

Step-3: Factors of 40078

List of positive integer factors of 40078 that divides 40078 without a remainder.

1, 2, 29, 58, 691, 1382, 20039

Step-4: Factors of 40090

List of positive integer factors of 40090 that divides 40078 without a remainder.

1, 2, 5, 10, 19, 38, 95, 190, 211, 422, 1055, 2110, 4009, 8018, 20045

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40078 and 40090. The biggest common factor number is the GCF number.
So the greatest common factor 40078 and 40090 is 2.

Also check out the Least Common Multiple of 40078 and 40090