Greatest Common Factor of 420, 870, 671

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

• Greatest Common Factor of 420, 870, 671 by common division method
• Greatest Common Factor of 420, 870, 671 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 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 870

List of positive integer factors of 870 that divides 870 without a remainder.

1,2,3,5,6,10,15,29,30,58,87,145,174,290,435,870

Factors of 671

List of positive integer factors of 671 that divides 671 without a remainder.

1,11,61,671

Greatest Common Factor

We found the factors 420,870,671 . The biggest common factor number is the GCF number.
So the greatest common factor 420,870,671 is 1.

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

• GCF of 687, 275, 972
• GCF of 954, 228, 784
• GCF of 990, 656, 587
• GCF of 634, 704, 598
• GCF of 784, 809, 913

1. What is the GCF of 420, 870, 671?

Answer: GCF of 420, 870, 671 is 1.

2. How to Find the GCF of 420, 870, 671

Answer: Greatest Common Factor(GCF) of 420, 870, 671 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 870, 671) = 1.