Greatest Common Factor of 78, 67, 72, 42, 154

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

• Greatest Common Factor of 78, 67, 72, 42, 154 by common division method
• Greatest Common Factor of 78, 67, 72, 42, 154 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 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 154

List of positive integer factors of 154 that divides 154 without a remainder.

1,2,7,11,14,22,77,154

Greatest Common Factor

We found the factors 78,67,72,42,154 . The biggest common factor number is the GCF number.
So the greatest common factor 78,67,72,42,154 is 1.

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

• GCF of 87, 59, 13, 16, 607
• GCF of 56, 84, 71, 59, 628
• GCF of 60, 83, 48, 59, 494
• GCF of 70, 62, 50, 92, 408
• GCF of 28, 66, 51, 98, 242

1. What is the GCF of 78, 67, 72, 42, 154?

Answer: GCF of 78, 67, 72, 42, 154 is 1.

2. How to Find the GCF of 78, 67, 72, 42, 154

Answer: Greatest Common Factor(GCF) of 78, 67, 72, 42, 154 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 67, 72, 42, 154) = 1.