Greatest Common Factor of 30, 85, 31, 678

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

• Greatest Common Factor of 30, 85, 31, 678 by common division method
• Greatest Common Factor of 30, 85, 31, 678 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 30

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

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

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 31

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

1,31

Factors of 678

List of positive integer factors of 678 that divides 678 without a remainder.

1,2,3,6,113,226,339,678

Greatest Common Factor

We found the factors 30,85,31,678 . The biggest common factor number is the GCF number.
So the greatest common factor 30,85,31,678 is 1.

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

• GCF of 13, 83, 28, 878
• GCF of 96, 55, 65, 734
• GCF of 20, 27, 40, 736
• GCF of 95, 85, 68, 794
• GCF of 89, 36, 68, 483

1. What is the GCF of 30, 85, 31, 678?

Answer: GCF of 30, 85, 31, 678 is 1.

2. How to Find the GCF of 30, 85, 31, 678

Answer: Greatest Common Factor(GCF) of 30, 85, 31, 678 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 85, 31, 678) = 1.