Greatest Common Factor of 42, 91, 25, 558

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

• Greatest Common Factor of 42, 91, 25, 558 by common division method
• Greatest Common Factor of 42, 91, 25, 558 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 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 558

List of positive integer factors of 558 that divides 558 without a remainder.

1,2,3,6,9,18,31,62,93,186,279,558

Greatest Common Factor

We found the factors 42,91,25,558 . The biggest common factor number is the GCF number.
So the greatest common factor 42,91,25,558 is 1.

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

• GCF of 52, 98, 52, 255
• GCF of 24, 29, 67, 924
• GCF of 45, 96, 72, 296
• GCF of 45, 58, 16, 613
• GCF of 21, 34, 51, 816

1. What is the GCF of 42, 91, 25, 558?

Answer: GCF of 42, 91, 25, 558 is 1.

2. How to Find the GCF of 42, 91, 25, 558

Answer: Greatest Common Factor(GCF) of 42, 91, 25, 558 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 91, 25, 558) = 1.