Greatest Common Factor of 21, 35, 50, 60, 30

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

• Greatest Common Factor of 21, 35, 50, 60, 30 by common division method
• Greatest Common Factor of 21, 35, 50, 60, 30 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 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

Factors of 50

List of positive integer factors of 50 that divides 50 without a remainder.

1,2,5,10,25,50

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 30

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

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

Greatest Common Factor

We found the factors 21,35,50,60,30 . The biggest common factor number is the GCF number.
So the greatest common factor 21,35,50,60,30 is 1.

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

• GCF of 35, 10, 87, 79, 55
• GCF of 60, 54, 93, 47, 75
• GCF of 96, 82, 90, 27, 36
• GCF of 87, 47, 83, 75, 28
• GCF of 73, 24, 60, 24, 50

1. What is the GCF of 21, 35, 50, 60, 30?

Answer: GCF of 21, 35, 50, 60, 30 is 1.

2. How to Find the GCF of 21, 35, 50, 60, 30

Answer: Greatest Common Factor(GCF) of 21, 35, 50, 60, 30 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 35, 50, 60, 30) = 1.