Greatest Common Factor of 21, 421, 900

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

• Greatest Common Factor of 21, 421, 900 by common division method
• Greatest Common Factor of 21, 421, 900 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 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Factors of 900

List of positive integer factors of 900 that divides 900 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,25,30,36,45,50,60,75,90,100,150,180,225,300,450,900

Greatest Common Factor

We found the factors 21,421,900 . The biggest common factor number is the GCF number.
So the greatest common factor 21,421,900 is 1.

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

• GCF of 27, 290, 310
• GCF of 87, 336, 610
• GCF of 74, 408, 323
• GCF of 86, 255, 336
• GCF of 50, 839, 739

1. What is the GCF of 21, 421, 900?

Answer: GCF of 21, 421, 900 is 1.

2. How to Find the GCF of 21, 421, 900

Answer: Greatest Common Factor(GCF) of 21, 421, 900 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 421, 900) = 1.