Greatest Common Factor of 447, 258, 21

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

• Greatest Common Factor of 447, 258, 21 by common division method
• Greatest Common Factor of 447, 258, 21 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 447

List of positive integer factors of 447 that divides 447 without a remainder.

1,3,149,447

Factors of 258

List of positive integer factors of 258 that divides 258 without a remainder.

1,2,3,6,43,86,129,258

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 447,258,21 . The biggest common factor number is the GCF number.
So the greatest common factor 447,258,21 is 3.

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

• GCF of 182, 797, 61
• GCF of 971, 956, 65
• GCF of 147, 544, 15
• GCF of 629, 207, 85
• GCF of 439, 439, 98

1. What is the GCF of 447, 258, 21?

Answer: GCF of 447, 258, 21 is 3.

2. How to Find the GCF of 447, 258, 21

Answer: Greatest Common Factor(GCF) of 447, 258, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(447, 258, 21) = 3.