Greatest Common Factor of 18, 71, 47, 630

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

• Greatest Common Factor of 18, 71, 47, 630 by common division method
• Greatest Common Factor of 18, 71, 47, 630 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 630

List of positive integer factors of 630 that divides 630 without a remainder.

1,2,3,5,6,7,9,10,14,15,18,21,30,35,42,45,63,70,90,105,126,210,315,630

Greatest Common Factor

We found the factors 18,71,47,630 . The biggest common factor number is the GCF number.
So the greatest common factor 18,71,47,630 is 1.

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

• GCF of 68, 95, 78, 931
• GCF of 60, 79, 25, 442
• GCF of 88, 18, 21, 617
• GCF of 59, 91, 85, 832
• GCF of 88, 93, 67, 566

1. What is the GCF of 18, 71, 47, 630?

Answer: GCF of 18, 71, 47, 630 is 1.

2. How to Find the GCF of 18, 71, 47, 630

Answer: Greatest Common Factor(GCF) of 18, 71, 47, 630 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 71, 47, 630) = 1.