Greatest Common Factor of 42, 63, 12, 671

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

• Greatest Common Factor of 42, 63, 12, 671 by common division method
• Greatest Common Factor of 42, 63, 12, 671 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 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 671

List of positive integer factors of 671 that divides 671 without a remainder.

1,11,61,671

Greatest Common Factor

We found the factors 42,63,12,671 . The biggest common factor number is the GCF number.
So the greatest common factor 42,63,12,671 is 1.

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

• GCF of 39, 19, 30, 284
• GCF of 41, 67, 36, 321
• GCF of 32, 27, 30, 720
• GCF of 33, 61, 73, 374
• GCF of 46, 68, 54, 882

1. What is the GCF of 42, 63, 12, 671?

Answer: GCF of 42, 63, 12, 671 is 1.

2. How to Find the GCF of 42, 63, 12, 671

Answer: Greatest Common Factor(GCF) of 42, 63, 12, 671 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 63, 12, 671) = 1.