Greatest Common Factor of 18, 78, 67, 428

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

• Greatest Common Factor of 18, 78, 67, 428 by common division method
• Greatest Common Factor of 18, 78, 67, 428 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 67

List of positive integer factors of 67 that divides 67 without a remainder.

1,67

Factors of 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Greatest Common Factor

We found the factors 18,78,67,428 . The biggest common factor number is the GCF number.
So the greatest common factor 18,78,67,428 is 1.

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

• GCF of 33, 69, 57, 437
• GCF of 57, 35, 38, 121
• GCF of 93, 94, 75, 628
• GCF of 77, 66, 21, 387
• GCF of 44, 49, 14, 703

1. What is the GCF of 18, 78, 67, 428?

Answer: GCF of 18, 78, 67, 428 is 1.

2. How to Find the GCF of 18, 78, 67, 428

Answer: Greatest Common Factor(GCF) of 18, 78, 67, 428 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 78, 67, 428) = 1.