Greatest Common Factor of 42, 12, 45, 615

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

• Greatest Common Factor of 42, 12, 45, 615 by common division method
• Greatest Common Factor of 42, 12, 45, 615 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 42

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

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

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 45

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

1,3,5,9,15,45

Factors of 615

List of positive integer factors of 615 that divides 615 without a remainder.

1,3,5,15,41,123,205,615

Greatest Common Factor

We found the factors 42,12,45,615 . The biggest common factor number is the GCF number.
So the greatest common factor 42,12,45,615 is 3.

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

• GCF of 10, 56, 22, 202
• GCF of 73, 45, 97, 452
• GCF of 94, 33, 98, 308
• GCF of 46, 56, 53, 330
• GCF of 48, 53, 77, 485

1. What is the GCF of 42, 12, 45, 615?

Answer: GCF of 42, 12, 45, 615 is 3.

2. How to Find the GCF of 42, 12, 45, 615

Answer: Greatest Common Factor(GCF) of 42, 12, 45, 615 = 3

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

Step 2: Then multiply all the prime factors GCF(42, 12, 45, 615) = 3.