Greatest Common Factor of 42, 55, 75, 203

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

• Greatest Common Factor of 42, 55, 75, 203 by common division method
• Greatest Common Factor of 42, 55, 75, 203 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 55

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

1,5,11,55

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 203

List of positive integer factors of 203 that divides 203 without a remainder.

1,7,29,203

Greatest Common Factor

We found the factors 42,55,75,203 . The biggest common factor number is the GCF number.
So the greatest common factor 42,55,75,203 is 1.

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

• GCF of 54, 14, 31, 317
• GCF of 79, 28, 53, 742
• GCF of 20, 81, 47, 155
• GCF of 93, 76, 94, 902
• GCF of 56, 42, 96, 294

1. What is the GCF of 42, 55, 75, 203?

Answer: GCF of 42, 55, 75, 203 is 1.

2. How to Find the GCF of 42, 55, 75, 203

Answer: Greatest Common Factor(GCF) of 42, 55, 75, 203 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 55, 75, 203) = 1.