Greatest Common Factor of 54, 21, 74, 15

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

• Greatest Common Factor of 54, 21, 74, 15 by common division method
• Greatest Common Factor of 54, 21, 74, 15 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 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 74

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

1,2,37,74

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Greatest Common Factor

We found the factors 54,21,74,15 . The biggest common factor number is the GCF number.
So the greatest common factor 54,21,74,15 is 1.

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

• GCF of 94, 30, 77, 19
• GCF of 33, 89, 48, 23
• GCF of 33, 70, 85, 12
• GCF of 96, 79, 78, 10
• GCF of 83, 96, 77, 65

1. What is the GCF of 54, 21, 74, 15?

Answer: GCF of 54, 21, 74, 15 is 1.

2. How to Find the GCF of 54, 21, 74, 15

Answer: Greatest Common Factor(GCF) of 54, 21, 74, 15 = 1

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

Step 2: Then multiply all the prime factors GCF(54, 21, 74, 15) = 1.