What is the greatest common factor of 30 and 180?

Answer 1

The greatest common factor of 30 and 120 is 30

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

Answer 2

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

The greatest common factor of 32 and 120 is 8

Answer 3

Since 30 is a factor of 180, it is automatically the GCF.

Answer 4

Or, more likely, the GCF of 12, 15, 20 and 30 is 1.

Answer 5

• Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
• Factors of 120: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
• GCF (30, 120) = 30

Answer 6

Since 3 is a factor of 120, it is automatically the GCF.

Answer 7

Prime factorization of 121520 = 24x5x72x31

Prime factorization of 30 = 2x3x5

GCF = 2x5 = 10

Answer 8

The GCF is 6.

Answer 9

GCF(120, 30) = 30

Answer 10

GCF(3, 120) = 3.