Greatest Common Factor of 42, 45, 102

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

• Greatest Common Factor of 42, 45, 102 by common division method
• Greatest Common Factor of 42, 45, 102 with matching the biggest common factor

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

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 45

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

1,3,5,9,15,45

Factors of 102

List of positive integer factors of 102 that divides 102 without a remainder.

1,2,3,6,17,34,51,102

Greatest Common Factor

We found the factors 42,45,102 . The biggest common factor number is the GCF number.
So the greatest common factor 42,45,102 is 3.

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

• GCF of 42, 15, 742
• GCF of 92, 38, 651
• GCF of 73, 68, 717
• GCF of 73, 32, 919
• GCF of 86, 80, 430

1. What is the GCF of 42, 45, 102?

Answer: GCF of 42, 45, 102 is 3.

2. How to Find the GCF of 42, 45, 102

Answer: Greatest Common Factor(GCF) of 42, 45, 102 = 3

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

Step 2: Then multiply all the prime factors GCF(42, 45, 102) = 3.