Greatest Common Factor of 10, 40, 638

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

• Greatest Common Factor of 10, 40, 638 by common division method
• Greatest Common Factor of 10, 40, 638 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Greatest Common Factor

We found the factors 10,40,638 . The biggest common factor number is the GCF number.
So the greatest common factor 10,40,638 is 2.

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

• GCF of 55, 43, 771
• GCF of 91, 90, 891
• GCF of 79, 70, 533
• GCF of 78, 46, 314
• GCF of 39, 12, 655

1. What is the GCF of 10, 40, 638?

Answer: GCF of 10, 40, 638 is 2.

2. How to Find the GCF of 10, 40, 638

Answer: Greatest Common Factor(GCF) of 10, 40, 638 = 2

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

Step 2: Then multiply all the prime factors GCF(10, 40, 638) = 2.