Greatest Common Factor of 420, 387, 74

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

• Greatest Common Factor of 420, 387, 74 by common division method
• Greatest Common Factor of 420, 387, 74 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 387

List of positive integer factors of 387 that divides 387 without a remainder.

1,3,9,43,129,387

Factors of 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Greatest Common Factor

We found the factors 420,387,74 . The biggest common factor number is the GCF number.
So the greatest common factor 420,387,74 is 1.

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

• GCF of 384, 967, 96
• GCF of 835, 447, 98
• GCF of 354, 831, 38
• GCF of 195, 505, 31
• GCF of 325, 287, 51

1. What is the GCF of 420, 387, 74?

Answer: GCF of 420, 387, 74 is 1.

2. How to Find the GCF of 420, 387, 74

Answer: Greatest Common Factor(GCF) of 420, 387, 74 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 387, 74) = 1.