Greatest Common Factor of 60, 70, 28, 643

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

• Greatest Common Factor of 60, 70, 28, 643 by common division method
• Greatest Common Factor of 60, 70, 28, 643 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 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 643

List of positive integer factors of 643 that divides 643 without a remainder.

1,643

Greatest Common Factor

We found the factors 60,70,28,643 . The biggest common factor number is the GCF number.
So the greatest common factor 60,70,28,643 is 1.

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

• GCF of 50, 23, 40, 335
• GCF of 12, 54, 69, 295
• GCF of 12, 13, 73, 659
• GCF of 90, 78, 18, 224
• GCF of 35, 59, 80, 899

1. What is the GCF of 60, 70, 28, 643?

Answer: GCF of 60, 70, 28, 643 is 1.

2. How to Find the GCF of 60, 70, 28, 643

Answer: Greatest Common Factor(GCF) of 60, 70, 28, 643 = 1

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

Step 2: Then multiply all the prime factors GCF(60, 70, 28, 643) = 1.