Greatest Common Factor of 420, 789, 487

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

• Greatest Common Factor of 420, 789, 487 by common division method
• Greatest Common Factor of 420, 789, 487 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 789

List of positive integer factors of 789 that divides 789 without a remainder.

1,3,263,789

Factors of 487

List of positive integer factors of 487 that divides 487 without a remainder.

1,487

Greatest Common Factor

We found the factors 420,789,487 . The biggest common factor number is the GCF number.
So the greatest common factor 420,789,487 is 1.

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

• GCF of 487, 114, 123
• GCF of 346, 940, 331
• GCF of 958, 532, 796
• GCF of 858, 782, 996
• GCF of 228, 431, 331

1. What is the GCF of 420, 789, 487?

Answer: GCF of 420, 789, 487 is 1.

2. How to Find the GCF of 420, 789, 487

Answer: Greatest Common Factor(GCF) of 420, 789, 487 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 789, 487) = 1.