Greatest Common Factor of 420, 670, 648

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

• Greatest Common Factor of 420, 670, 648 by common division method
• Greatest Common Factor of 420, 670, 648 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 670

List of positive integer factors of 670 that divides 670 without a remainder.

1,2,5,10,67,134,335,670

Factors of 648

List of positive integer factors of 648 that divides 648 without a remainder.

1,2,3,4,6,8,9,12,18,24,27,36,54,72,81,108,162,216,324,648

Greatest Common Factor

We found the factors 420,670,648 . The biggest common factor number is the GCF number.
So the greatest common factor 420,670,648 is 2.

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

• GCF of 480, 530, 822
• GCF of 807, 648, 144
• GCF of 242, 321, 428
• GCF of 107, 466, 249
• GCF of 286, 188, 731

1. What is the GCF of 420, 670, 648?

Answer: GCF of 420, 670, 648 is 2.

2. How to Find the GCF of 420, 670, 648

Answer: Greatest Common Factor(GCF) of 420, 670, 648 = 2

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

Step 2: Then multiply all the prime factors GCF(420, 670, 648) = 2.