Greatest Common Factor of 42, 19, 810

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

• Greatest Common Factor of 42, 19, 810 by common division method
• Greatest Common Factor of 42, 19, 810 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 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 810

List of positive integer factors of 810 that divides 810 without a remainder.

1,2,3,5,6,9,10,15,18,27,30,45,54,81,90,135,162,270,405,810

Greatest Common Factor

We found the factors 42,19,810 . The biggest common factor number is the GCF number.
So the greatest common factor 42,19,810 is 1.

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

• GCF of 85, 52, 663
• GCF of 17, 99, 386
• GCF of 44, 66, 491
• GCF of 73, 51, 396
• GCF of 30, 42, 998

1. What is the GCF of 42, 19, 810?

Answer: GCF of 42, 19, 810 is 1.

2. How to Find the GCF of 42, 19, 810

Answer: Greatest Common Factor(GCF) of 42, 19, 810 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 19, 810) = 1.