Greatest Common Factor of 243, 976, 21

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

• Greatest Common Factor of 243, 976, 21 by common division method
• Greatest Common Factor of 243, 976, 21 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 243

List of positive integer factors of 243 that divides 243 without a remainder.

1,3,9,27,81,243

Factors of 976

List of positive integer factors of 976 that divides 976 without a remainder.

1,2,4,8,16,61,122,244,488,976

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 243,976,21 . The biggest common factor number is the GCF number.
So the greatest common factor 243,976,21 is 1.

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

• GCF of 141, 937, 51
• GCF of 838, 808, 20
• GCF of 734, 838, 39
• GCF of 487, 172, 60
• GCF of 429, 652, 75

1. What is the GCF of 243, 976, 21?

Answer: GCF of 243, 976, 21 is 1.

2. How to Find the GCF of 243, 976, 21

Answer: Greatest Common Factor(GCF) of 243, 976, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(243, 976, 21) = 1.