What is the Greatest Common Factor of 70161 and 70175?

Greatest common factor (GCF) of 70161 and 70175 is 7.

GCF(70161,70175) = 7

We will now calculate the prime factors of 70161 and 70175, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70161 and 70175.

How to find the GCF of 70161 and 70175?

We will first find the prime factorization of 70161 and 70175. After we will calculate the factors of 70161 and 70175 and find the biggest common factor number .

Step-1: Prime Factorization of 70161

Prime factors of 70161 are 3, 7, 13, 257. Prime factorization of 70161 in exponential form is:

70161 = 3¹ × 7¹ × 13¹ × 257¹

Step-2: Prime Factorization of 70175

Prime factors of 70175 are 5, 7, 401. Prime factorization of 70175 in exponential form is:

70175 = 5² × 7¹ × 401¹

Step-3: Factors of 70161

List of positive integer factors of 70161 that divides 70161 without a remainder.

1, 3, 7, 13, 21, 39, 91, 257, 273, 771, 1799, 3341, 5397, 10023, 23387

Step-4: Factors of 70175

List of positive integer factors of 70175 that divides 70161 without a remainder.

1, 5, 7, 25, 35, 175, 401, 2005, 2807, 10025, 14035

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70161 and 70175. The biggest common factor number is the GCF number.
So the greatest common factor 70161 and 70175 is 7.

Also check out the Least Common Multiple of 70161 and 70175