Greatest Common Factor of 42, 32, 30, 139

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

• Greatest Common Factor of 42, 32, 30, 139 by common division method
• Greatest Common Factor of 42, 32, 30, 139 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 32

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

1,2,4,8,16,32

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 139

List of positive integer factors of 139 that divides 139 without a remainder.

1,139

Greatest Common Factor

We found the factors 42,32,30,139 . The biggest common factor number is the GCF number.
So the greatest common factor 42,32,30,139 is 1.

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

• GCF of 99, 51, 91, 632
• GCF of 33, 36, 27, 770
• GCF of 61, 50, 24, 684
• GCF of 62, 28, 46, 151
• GCF of 17, 49, 90, 608

1. What is the GCF of 42, 32, 30, 139?

Answer: GCF of 42, 32, 30, 139 is 1.

2. How to Find the GCF of 42, 32, 30, 139

Answer: Greatest Common Factor(GCF) of 42, 32, 30, 139 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 32, 30, 139) = 1.