Greatest Common Factor of 21, 56, 47, 575

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

• Greatest Common Factor of 21, 56, 47, 575 by common division method
• Greatest Common Factor of 21, 56, 47, 575 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 21

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

1,3,7,21

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 575

List of positive integer factors of 575 that divides 575 without a remainder.

1,5,23,25,115,575

Greatest Common Factor

We found the factors 21,56,47,575 . The biggest common factor number is the GCF number.
So the greatest common factor 21,56,47,575 is 1.

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

• GCF of 71, 38, 45, 347
• GCF of 21, 70, 97, 867
• GCF of 84, 45, 57, 785
• GCF of 95, 92, 40, 809
• GCF of 10, 21, 50, 234

1. What is the GCF of 21, 56, 47, 575?

Answer: GCF of 21, 56, 47, 575 is 1.

2. How to Find the GCF of 21, 56, 47, 575

Answer: Greatest Common Factor(GCF) of 21, 56, 47, 575 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 56, 47, 575) = 1.