Greatest Common Factor of 30, 79, 21, 993

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

• Greatest Common Factor of 30, 79, 21, 993 by common division method
• Greatest Common Factor of 30, 79, 21, 993 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 30

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

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

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 21

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

1,3,7,21

Factors of 993

List of positive integer factors of 993 that divides 993 without a remainder.

1,3,331,993

Greatest Common Factor

We found the factors 30,79,21,993 . The biggest common factor number is the GCF number.
So the greatest common factor 30,79,21,993 is 1.

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

• GCF of 46, 20, 66, 380
• GCF of 93, 40, 60, 788
• GCF of 63, 50, 59, 792
• GCF of 76, 78, 63, 525
• GCF of 77, 92, 23, 869

1. What is the GCF of 30, 79, 21, 993?

Answer: GCF of 30, 79, 21, 993 is 1.

2. How to Find the GCF of 30, 79, 21, 993

Answer: Greatest Common Factor(GCF) of 30, 79, 21, 993 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 79, 21, 993) = 1.