Greatest Common Factor of 21, 37, 66, 825

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

• Greatest Common Factor of 21, 37, 66, 825 by common division method
• Greatest Common Factor of 21, 37, 66, 825 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 37

List of positive integer factors of 37 that divides 37 without a remainder.

1,37

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 825

List of positive integer factors of 825 that divides 825 without a remainder.

1,3,5,11,15,25,33,55,75,165,275,825

Greatest Common Factor

We found the factors 21,37,66,825 . The biggest common factor number is the GCF number.
So the greatest common factor 21,37,66,825 is 1.

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

• GCF of 39, 11, 81, 948
• GCF of 15, 87, 32, 567
• GCF of 72, 28, 74, 250
• GCF of 45, 11, 43, 891
• GCF of 60, 37, 25, 707

1. What is the GCF of 21, 37, 66, 825?

Answer: GCF of 21, 37, 66, 825 is 1.

2. How to Find the GCF of 21, 37, 66, 825

Answer: Greatest Common Factor(GCF) of 21, 37, 66, 825 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 37, 66, 825) = 1.