Greatest Common Factor of 20, 18, 499, 651

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

• Greatest Common Factor of 20, 18, 499, 651 by common division method
• Greatest Common Factor of 20, 18, 499, 651 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 18

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

1,2,3,6,9,18

Factors of 499

List of positive integer factors of 499 that divides 499 without a remainder.

1,499

Factors of 651

List of positive integer factors of 651 that divides 651 without a remainder.

1,3,7,21,31,93,217,651

Greatest Common Factor

We found the factors 20,18,499,651 . The biggest common factor number is the GCF number.
So the greatest common factor 20,18,499,651 is 1.

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

• GCF of 97, 65, 613, 731
• GCF of 11, 69, 945, 106
• GCF of 65, 89, 390, 407
• GCF of 85, 35, 382, 128
• GCF of 28, 66, 368, 924

1. What is the GCF of 20, 18, 499, 651?

Answer: GCF of 20, 18, 499, 651 is 1.

2. How to Find the GCF of 20, 18, 499, 651

Answer: Greatest Common Factor(GCF) of 20, 18, 499, 651 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 18, 499, 651) = 1.