What is the Greatest Common Factor of 40390 and 40402?

Greatest common factor (GCF) of 40390 and 40402 is 2.

GCF(40390,40402) = 2

We will now calculate the prime factors of 40390 and 40402, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40390 and 40402.

How to find the GCF of 40390 and 40402?

We will first find the prime factorization of 40390 and 40402. After we will calculate the factors of 40390 and 40402 and find the biggest common factor number .

Step-1: Prime Factorization of 40390

Prime factors of 40390 are 2, 5, 7, 577. Prime factorization of 40390 in exponential form is:

40390 = 2¹ × 5¹ × 7¹ × 577¹

Step-2: Prime Factorization of 40402

Prime factors of 40402 are 2, 20201. Prime factorization of 40402 in exponential form is:

40402 = 2¹ × 20201¹

Step-3: Factors of 40390

List of positive integer factors of 40390 that divides 40390 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70, 577, 1154, 2885, 4039, 5770, 8078, 20195

Step-4: Factors of 40402

List of positive integer factors of 40402 that divides 40390 without a remainder.

1, 2, 20201

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40390 and 40402. The biggest common factor number is the GCF number.
So the greatest common factor 40390 and 40402 is 2.

Also check out the Least Common Multiple of 40390 and 40402