Greatest Common Factor of 45, 13, 81, 630

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

• Greatest Common Factor of 45, 13, 81, 630 by common division method
• Greatest Common Factor of 45, 13, 81, 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

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 45,13,81,630 . The biggest common factor number is the GCF number.
So the greatest common factor 45,13,81,630 is 1.

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

• GCF of 28, 14, 52, 915
• GCF of 11, 53, 52, 592
• GCF of 89, 81, 48, 980
• GCF of 50, 20, 77, 912
• GCF of 94, 66, 88, 820

1. What is the GCF of 45, 13, 81, 630?

Answer: GCF of 45, 13, 81, 630 is 1.

2. How to Find the GCF of 45, 13, 81, 630

Answer: Greatest Common Factor(GCF) of 45, 13, 81, 630 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 13, 81, 630) = 1.