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What is the Greatest Common Factor of 43055 and 43070?

Greatest common factor (GCF) of 43055 and 43070 is 5.

GCF(43055,43070) = 5

We will now calculate the prime factors of 43055 and 43070, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 43055 and 43070.

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How to find the GCF of 43055 and 43070?

We will first find the prime factorization of 43055 and 43070. After we will calculate the factors of 43055 and 43070 and find the biggest common factor number .

Step-1: Prime Factorization of 43055

Prime factors of 43055 are 5, 79, 109. Prime factorization of 43055 in exponential form is:

43055 = 51 × 791 × 1091

Step-2: Prime Factorization of 43070

Prime factors of 43070 are 2, 5, 59, 73. Prime factorization of 43070 in exponential form is:

43070 = 21 × 51 × 591 × 731

Step-3: Factors of 43055

List of positive integer factors of 43055 that divides 43055 without a remainder.

1, 5, 79, 109, 395, 545, 8611

Step-4: Factors of 43070

List of positive integer factors of 43070 that divides 43055 without a remainder.

1, 2, 5, 10, 59, 73, 118, 146, 295, 365, 590, 730, 4307, 8614, 21535

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 43055 and 43070. The biggest common factor number is the GCF number.
So the greatest common factor 43055 and 43070 is 5.

Also check out the Least Common Multiple of 43055 and 43070