Greatest Common Factor of 42, 805, 813

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

• Greatest Common Factor of 42, 805, 813 by common division method
• Greatest Common Factor of 42, 805, 813 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 805

List of positive integer factors of 805 that divides 805 without a remainder.

1,5,7,23,35,115,161,805

Factors of 813

List of positive integer factors of 813 that divides 813 without a remainder.

1,3,271,813

Greatest Common Factor

We found the factors 42,805,813 . The biggest common factor number is the GCF number.
So the greatest common factor 42,805,813 is 1.

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

• GCF of 90, 808, 675
• GCF of 26, 338, 313
• GCF of 30, 711, 276
• GCF of 84, 921, 929
• GCF of 65, 220, 125

1. What is the GCF of 42, 805, 813?

Answer: GCF of 42, 805, 813 is 1.

2. How to Find the GCF of 42, 805, 813

Answer: Greatest Common Factor(GCF) of 42, 805, 813 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 805, 813) = 1.