Greatest Common Factor of 31, 66, 38, 30

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 31, 66, 38, 30 by common division method
• Greatest Common Factor of 31, 66, 38, 30 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Greatest Common Factor

We found the factors 31,66,38,30 . The biggest common factor number is the GCF number.
So the greatest common factor 31,66,38,30 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 94, 92, 37, 92
• GCF of 51, 29, 98, 86
• GCF of 43, 42, 46, 17
• GCF of 61, 11, 21, 94
• GCF of 42, 33, 32, 67

1. What is the GCF of 31, 66, 38, 30?

Answer: GCF of 31, 66, 38, 30 is 1.

2. How to Find the GCF of 31, 66, 38, 30

Answer: Greatest Common Factor(GCF) of 31, 66, 38, 30 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(31, 66, 38, 30) = 1.