Greatest Common Factor of 40, 21, 563

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

• Greatest Common Factor of 40, 21, 563 by common division method
• Greatest Common Factor of 40, 21, 563 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 40

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

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

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 563

List of positive integer factors of 563 that divides 563 without a remainder.

1,563

Greatest Common Factor

We found the factors 40,21,563 . The biggest common factor number is the GCF number.
So the greatest common factor 40,21,563 is 1.

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

• GCF of 22, 19, 569
• GCF of 74, 89, 730
• GCF of 10, 54, 774
• GCF of 63, 71, 182
• GCF of 16, 85, 656

1. What is the GCF of 40, 21, 563?

Answer: GCF of 40, 21, 563 is 1.

2. How to Find the GCF of 40, 21, 563

Answer: Greatest Common Factor(GCF) of 40, 21, 563 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 21, 563) = 1.