Greatest Common Factor of 21, 72, 48, 130

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

• Greatest Common Factor of 21, 72, 48, 130 by common division method
• Greatest Common Factor of 21, 72, 48, 130 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 48

List of positive integer factors of 48 that divides 48 without a remainder.

1,2,3,4,6,8,12,16,24,48

Factors of 130

List of positive integer factors of 130 that divides 130 without a remainder.

1,2,5,10,13,26,65,130

Greatest Common Factor

We found the factors 21,72,48,130 . The biggest common factor number is the GCF number.
So the greatest common factor 21,72,48,130 is 1.

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

• GCF of 80, 21, 13, 316
• GCF of 98, 28, 65, 770
• GCF of 67, 42, 78, 357
• GCF of 77, 28, 88, 860
• GCF of 79, 63, 74, 606

1. What is the GCF of 21, 72, 48, 130?

Answer: GCF of 21, 72, 48, 130 is 1.

2. How to Find the GCF of 21, 72, 48, 130

Answer: Greatest Common Factor(GCF) of 21, 72, 48, 130 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 72, 48, 130) = 1.