Greatest Common Factor of 42, 19, 636, 681

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

• Greatest Common Factor of 42, 19, 636, 681 by common division method
• Greatest Common Factor of 42, 19, 636, 681 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 636

List of positive integer factors of 636 that divides 636 without a remainder.

1,2,3,4,6,12,53,106,159,212,318,636

Factors of 681

List of positive integer factors of 681 that divides 681 without a remainder.

1,3,227,681

Greatest Common Factor

We found the factors 42,19,636,681 . The biggest common factor number is the GCF number.
So the greatest common factor 42,19,636,681 is 1.

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

• GCF of 25, 14, 356, 460
• GCF of 77, 54, 728, 241
• GCF of 79, 23, 972, 417
• GCF of 45, 16, 722, 644
• GCF of 60, 57, 988, 260

1. What is the GCF of 42, 19, 636, 681?

Answer: GCF of 42, 19, 636, 681 is 1.

2. How to Find the GCF of 42, 19, 636, 681

Answer: Greatest Common Factor(GCF) of 42, 19, 636, 681 = 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, 636, 681) = 1.