Greatest Common Factor of 42, 77, 32, 660

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

• Greatest Common Factor of 42, 77, 32, 660 by common division method
• Greatest Common Factor of 42, 77, 32, 660 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 42

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

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

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Factors of 32

List of positive integer factors of 32 that divides 32 without a remainder.

1,2,4,8,16,32

Factors of 660

List of positive integer factors of 660 that divides 660 without a remainder.

1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660

Greatest Common Factor

We found the factors 42,77,32,660 . The biggest common factor number is the GCF number.
So the greatest common factor 42,77,32,660 is 1.

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

• GCF of 95, 74, 19, 414
• GCF of 17, 86, 18, 506
• GCF of 13, 91, 83, 164
• GCF of 92, 96, 69, 234
• GCF of 39, 57, 93, 471

1. What is the GCF of 42, 77, 32, 660?

Answer: GCF of 42, 77, 32, 660 is 1.

2. How to Find the GCF of 42, 77, 32, 660

Answer: Greatest Common Factor(GCF) of 42, 77, 32, 660 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 77, 32, 660) = 1.