Greatest Common Factor of 45, 18, 678

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

• Greatest Common Factor of 45, 18, 678 by common division method
• Greatest Common Factor of 45, 18, 678 with matching the biggest common factor

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∴ 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 18

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

1,2,3,6,9,18

Factors of 678

List of positive integer factors of 678 that divides 678 without a remainder.

1,2,3,6,113,226,339,678

Greatest Common Factor

We found the factors 45,18,678 . The biggest common factor number is the GCF number.
So the greatest common factor 45,18,678 is 3.

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

• GCF of 55, 14, 162
• GCF of 15, 52, 408
• GCF of 53, 55, 222
• GCF of 58, 71, 781
• GCF of 24, 42, 338

1. What is the GCF of 45, 18, 678?

Answer: GCF of 45, 18, 678 is 3.

2. How to Find the GCF of 45, 18, 678

Answer: Greatest Common Factor(GCF) of 45, 18, 678 = 3

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

Step 2: Then multiply all the prime factors GCF(45, 18, 678) = 3.