Greatest Common Factor of 21, 203, 972

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

• Greatest Common Factor of 21, 203, 972 by common division method
• Greatest Common Factor of 21, 203, 972 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 203

List of positive integer factors of 203 that divides 203 without a remainder.

1,7,29,203

Factors of 972

List of positive integer factors of 972 that divides 972 without a remainder.

1,2,3,4,6,9,12,18,27,36,54,81,108,162,243,324,486,972

Greatest Common Factor

We found the factors 21,203,972 . The biggest common factor number is the GCF number.
So the greatest common factor 21,203,972 is 1.

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

• GCF of 61, 610, 623
• GCF of 28, 346, 502
• GCF of 36, 900, 622
• GCF of 59, 331, 801
• GCF of 47, 416, 648

1. What is the GCF of 21, 203, 972?

Answer: GCF of 21, 203, 972 is 1.

2. How to Find the GCF of 21, 203, 972

Answer: Greatest Common Factor(GCF) of 21, 203, 972 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 203, 972) = 1.