Greatest Common Factor of 42, 71, 55, 143

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

• Greatest Common Factor of 42, 71, 55, 143 by common division method
• Greatest Common Factor of 42, 71, 55, 143 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 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 143

List of positive integer factors of 143 that divides 143 without a remainder.

1,11,13,143

Greatest Common Factor

We found the factors 42,71,55,143 . The biggest common factor number is the GCF number.
So the greatest common factor 42,71,55,143 is 1.

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

• GCF of 98, 48, 32, 328
• GCF of 89, 54, 37, 138
• GCF of 57, 81, 29, 184
• GCF of 58, 47, 38, 726
• GCF of 46, 38, 75, 594

1. What is the GCF of 42, 71, 55, 143?

Answer: GCF of 42, 71, 55, 143 is 1.

2. How to Find the GCF of 42, 71, 55, 143

Answer: Greatest Common Factor(GCF) of 42, 71, 55, 143 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 71, 55, 143) = 1.