Greatest Common Factor of 42, 19, 68, 486

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

• Greatest Common Factor of 42, 19, 68, 486 by common division method
• Greatest Common Factor of 42, 19, 68, 486 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 486

List of positive integer factors of 486 that divides 486 without a remainder.

1,2,3,6,9,18,27,54,81,162,243,486

Greatest Common Factor

We found the factors 42,19,68,486 . The biggest common factor number is the GCF number.
So the greatest common factor 42,19,68,486 is 1.

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

• GCF of 20, 62, 98, 227
• GCF of 31, 81, 70, 475
• GCF of 49, 29, 31, 563
• GCF of 58, 58, 26, 379
• GCF of 29, 38, 65, 374

1. What is the GCF of 42, 19, 68, 486?

Answer: GCF of 42, 19, 68, 486 is 1.

2. How to Find the GCF of 42, 19, 68, 486

Answer: Greatest Common Factor(GCF) of 42, 19, 68, 486 = 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, 68, 486) = 1.