What is the Greatest Common Factor of 30951 and 30970?

Greatest common factor (GCF) of 30951 and 30970 is 19.

GCF(30951,30970) = 19

We will now calculate the prime factors of 30951 and 30970, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30951 and 30970.

How to find the GCF of 30951 and 30970?

We will first find the prime factorization of 30951 and 30970. After we will calculate the factors of 30951 and 30970 and find the biggest common factor number .

Step-1: Prime Factorization of 30951

Prime factors of 30951 are 3, 19, 181. Prime factorization of 30951 in exponential form is:

30951 = 3² × 19¹ × 181¹

Step-2: Prime Factorization of 30970

Prime factors of 30970 are 2, 5, 19, 163. Prime factorization of 30970 in exponential form is:

30970 = 2¹ × 5¹ × 19¹ × 163¹

Step-3: Factors of 30951

List of positive integer factors of 30951 that divides 30951 without a remainder.

1, 3, 9, 19, 57, 171, 181, 543, 1629, 3439, 10317

Step-4: Factors of 30970

List of positive integer factors of 30970 that divides 30951 without a remainder.

1, 2, 5, 10, 19, 38, 95, 163, 190, 326, 815, 1630, 3097, 6194, 15485

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30951 and 30970. The biggest common factor number is the GCF number.
So the greatest common factor 30951 and 30970 is 19.

Also check out the Least Common Multiple of 30951 and 30970