Greatest Common Factor of 21, 30, 14, 585

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

• Greatest Common Factor of 21, 30, 14, 585 by common division method
• Greatest Common Factor of 21, 30, 14, 585 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 21

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

1,3,7,21

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 14

List of positive integer factors of 14 that divides 14 without a remainder.

1,2,7,14

Factors of 585

List of positive integer factors of 585 that divides 585 without a remainder.

1,3,5,9,13,15,39,45,65,117,195,585

Greatest Common Factor

We found the factors 21,30,14,585 . The biggest common factor number is the GCF number.
So the greatest common factor 21,30,14,585 is 1.

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

• GCF of 83, 80, 66, 411
• GCF of 61, 36, 60, 738
• GCF of 71, 87, 59, 432
• GCF of 81, 78, 53, 481
• GCF of 93, 78, 33, 234

1. What is the GCF of 21, 30, 14, 585?

Answer: GCF of 21, 30, 14, 585 is 1.

2. How to Find the GCF of 21, 30, 14, 585

Answer: Greatest Common Factor(GCF) of 21, 30, 14, 585 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 30, 14, 585) = 1.