Greatest Common Factor of 15, 31, 73, 30

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

• Greatest Common Factor of 15, 31, 73, 30 by common division method
• Greatest Common Factor of 15, 31, 73, 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 15

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

1,3,5,15

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

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 15,31,73,30 . The biggest common factor number is the GCF number.
So the greatest common factor 15,31,73,30 is 1.

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

• GCF of 21, 76, 71, 21
• GCF of 32, 80, 94, 52
• GCF of 13, 80, 40, 46
• GCF of 75, 81, 44, 29
• GCF of 90, 79, 66, 28

1. What is the GCF of 15, 31, 73, 30?

Answer: GCF of 15, 31, 73, 30 is 1.

2. How to Find the GCF of 15, 31, 73, 30

Answer: Greatest Common Factor(GCF) of 15, 31, 73, 30 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 31, 73, 30) = 1.