Greatest Common Factor of 21, 897, 100

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

• Greatest Common Factor of 21, 897, 100 by common division method
• Greatest Common Factor of 21, 897, 100 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 897

List of positive integer factors of 897 that divides 897 without a remainder.

1,3,13,23,39,69,299,897

Factors of 100

List of positive integer factors of 100 that divides 100 without a remainder.

1,2,4,5,10,20,25,50,100

Greatest Common Factor

We found the factors 21,897,100 . The biggest common factor number is the GCF number.
So the greatest common factor 21,897,100 is 1.

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

• GCF of 40, 475, 255
• GCF of 64, 976, 974
• GCF of 93, 683, 931
• GCF of 94, 564, 240
• GCF of 77, 871, 691

1. What is the GCF of 21, 897, 100?

Answer: GCF of 21, 897, 100 is 1.

2. How to Find the GCF of 21, 897, 100

Answer: Greatest Common Factor(GCF) of 21, 897, 100 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 897, 100) = 1.