Greatest Common Factor of 42, 257, 791

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

• Greatest Common Factor of 42, 257, 791 by common division method
• Greatest Common Factor of 42, 257, 791 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 257

List of positive integer factors of 257 that divides 257 without a remainder.

1,257

Factors of 791

List of positive integer factors of 791 that divides 791 without a remainder.

1,7,113,791

Greatest Common Factor

We found the factors 42,257,791 . The biggest common factor number is the GCF number.
So the greatest common factor 42,257,791 is 1.

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

• GCF of 95, 150, 391
• GCF of 20, 259, 145
• GCF of 82, 124, 244
• GCF of 49, 381, 366
• GCF of 10, 562, 165

1. What is the GCF of 42, 257, 791?

Answer: GCF of 42, 257, 791 is 1.

2. How to Find the GCF of 42, 257, 791

Answer: Greatest Common Factor(GCF) of 42, 257, 791 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 257, 791) = 1.