Greatest Common Factor of 447, 708, 21

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

• Greatest Common Factor of 447, 708, 21 by common division method
• Greatest Common Factor of 447, 708, 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 708

List of positive integer factors of 708 that divides 708 without a remainder.

1,2,3,4,6,12,59,118,177,236,354,708

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 447,708,21 . The biggest common factor number is the GCF number.
So the greatest common factor 447,708,21 is 3.

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

• GCF of 738, 594, 70
• GCF of 709, 554, 77
• GCF of 918, 404, 84
• GCF of 484, 505, 38
• GCF of 942, 202, 99

1. What is the GCF of 447, 708, 21?

Answer: GCF of 447, 708, 21 is 3.

2. How to Find the GCF of 447, 708, 21

Answer: Greatest Common Factor(GCF) of 447, 708, 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, 708, 21) = 3.