Greatest Common Factor of 42, 205, 649

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

• Greatest Common Factor of 42, 205, 649 by common division method
• Greatest Common Factor of 42, 205, 649 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 205

List of positive integer factors of 205 that divides 205 without a remainder.

1,5,41,205

Factors of 649

List of positive integer factors of 649 that divides 649 without a remainder.

1,11,59,649

Greatest Common Factor

We found the factors 42,205,649 . The biggest common factor number is the GCF number.
So the greatest common factor 42,205,649 is 1.

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

• GCF of 24, 708, 896
• GCF of 19, 356, 553
• GCF of 97, 969, 875
• GCF of 94, 963, 942
• GCF of 73, 758, 598

1. What is the GCF of 42, 205, 649?

Answer: GCF of 42, 205, 649 is 1.

2. How to Find the GCF of 42, 205, 649

Answer: Greatest Common Factor(GCF) of 42, 205, 649 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 205, 649) = 1.