Greatest Common Factor of 42, 30, 84, 207

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

• Greatest Common Factor of 42, 30, 84, 207 by common division method
• Greatest Common Factor of 42, 30, 84, 207 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

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

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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 207

List of positive integer factors of 207 that divides 207 without a remainder.

1,3,9,23,69,207

Greatest Common Factor

We found the factors 42,30,84,207 . The biggest common factor number is the GCF number.
So the greatest common factor 42,30,84,207 is 3.

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

• GCF of 91, 65, 23, 637
• GCF of 16, 48, 92, 510
• GCF of 65, 40, 95, 121
• GCF of 77, 38, 96, 553
• GCF of 97, 92, 69, 698

1. What is the GCF of 42, 30, 84, 207?

Answer: GCF of 42, 30, 84, 207 is 3.

2. How to Find the GCF of 42, 30, 84, 207

Answer: Greatest Common Factor(GCF) of 42, 30, 84, 207 = 3

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

Step 2: Then multiply all the prime factors GCF(42, 30, 84, 207) = 3.