Greatest Common Factor of 42, 4221

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

• Greatest Common Factor of 42, 4221 by common division method
• Greatest Common Factor of 42, 4221 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 x 7 = 21

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 4221

List of positive integer factors of 4221 that divides 4221 without a remainder.

1,3,7,9,21,63,67,201,469,603,1407,4221

Greatest Common Factor

We found the factors 42,4221 . The biggest common factor number is the GCF number.
So the greatest common factor 42,4221 is 21.

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

• GCF of 24, 1771
• GCF of 83, 8508
• GCF of 46, 7675
• GCF of 83, 8664
• GCF of 18, 4571

1. What is the GCF of 42, 4221?

Answer: GCF of 42, 4221 is 21.

2. How to Find the GCF of 42, 4221

Answer: Greatest Common Factor(GCF) of 42, 4221 = 21

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

Step 2: Then multiply all the prime factors GCF(42, 4221) = 21.