Greatest Common Factor of 69, 78, 42, 186

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

• Greatest Common Factor of 69, 78, 42, 186 by common division method
• Greatest Common Factor of 69, 78, 42, 186 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

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 42

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

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

Factors of 186

List of positive integer factors of 186 that divides 186 without a remainder.

1,2,3,6,31,62,93,186

Greatest Common Factor

We found the factors 69,78,42,186 . The biggest common factor number is the GCF number.
So the greatest common factor 69,78,42,186 is 3.

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

• GCF of 73, 14, 34, 382
• GCF of 51, 84, 18, 433
• GCF of 83, 52, 87, 174
• GCF of 36, 71, 21, 259
• GCF of 16, 32, 86, 868

1. What is the GCF of 69, 78, 42, 186?

Answer: GCF of 69, 78, 42, 186 is 3.

2. How to Find the GCF of 69, 78, 42, 186

Answer: Greatest Common Factor(GCF) of 69, 78, 42, 186 = 3

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

Step 2: Then multiply all the prime factors GCF(69, 78, 42, 186) = 3.