Greatest Common Factor of 45, 21, 486

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

• Greatest Common Factor of 45, 21, 486 by common division method
• Greatest Common Factor of 45, 21, 486 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 45

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

1,3,5,9,15,45

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 486

List of positive integer factors of 486 that divides 486 without a remainder.

1,2,3,6,9,18,27,54,81,162,243,486

Greatest Common Factor

We found the factors 45,21,486 . The biggest common factor number is the GCF number.
So the greatest common factor 45,21,486 is 3.

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

• GCF of 20, 69, 988
• GCF of 18, 39, 755
• GCF of 33, 67, 719
• GCF of 37, 47, 735
• GCF of 23, 30, 538

1. What is the GCF of 45, 21, 486?

Answer: GCF of 45, 21, 486 is 3.

2. How to Find the GCF of 45, 21, 486

Answer: Greatest Common Factor(GCF) of 45, 21, 486 = 3

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

Step 2: Then multiply all the prime factors GCF(45, 21, 486) = 3.