What is the Greatest Common Factor of 42070 and 42090?

Greatest common factor (GCF) of 42070 and 42090 is 10.

GCF(42070,42090) = 10

We will now calculate the prime factors of 42070 and 42090, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42070 and 42090.

How to find the GCF of 42070 and 42090?

We will first find the prime factorization of 42070 and 42090. After we will calculate the factors of 42070 and 42090 and find the biggest common factor number .

Step-1: Prime Factorization of 42070

Prime factors of 42070 are 2, 5, 7, 601. Prime factorization of 42070 in exponential form is:

42070 = 2¹ × 5¹ × 7¹ × 601¹

Step-2: Prime Factorization of 42090

Prime factors of 42090 are 2, 3, 5, 23, 61. Prime factorization of 42090 in exponential form is:

42090 = 2¹ × 3¹ × 5¹ × 23¹ × 61¹

Step-3: Factors of 42070

List of positive integer factors of 42070 that divides 42070 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70, 601, 1202, 3005, 4207, 6010, 8414, 21035

Step-4: Factors of 42090

List of positive integer factors of 42090 that divides 42070 without a remainder.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 61, 69, 115, 122, 138, 183, 230, 305, 345, 366, 610, 690, 915, 1403, 1830, 2806, 4209, 7015, 8418, 14030, 21045

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42070 and 42090. The biggest common factor number is the GCF number.
So the greatest common factor 42070 and 42090 is 10.

Also check out the Least Common Multiple of 42070 and 42090