Greatest Common Factor of 12, 87, 42, 308

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

• Greatest Common Factor of 12, 87, 42, 308 by common division method
• Greatest Common Factor of 12, 87, 42, 308 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 12

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

1,2,3,4,6,12

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

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 308

List of positive integer factors of 308 that divides 308 without a remainder.

1,2,4,7,11,14,22,28,44,77,154,308

Greatest Common Factor

We found the factors 12,87,42,308 . The biggest common factor number is the GCF number.
So the greatest common factor 12,87,42,308 is 1.

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

• GCF of 23, 83, 30, 717
• GCF of 38, 56, 35, 723
• GCF of 48, 82, 99, 661
• GCF of 66, 93, 61, 185
• GCF of 76, 68, 62, 269

1. What is the GCF of 12, 87, 42, 308?

Answer: GCF of 12, 87, 42, 308 is 1.

2. How to Find the GCF of 12, 87, 42, 308

Answer: Greatest Common Factor(GCF) of 12, 87, 42, 308 = 1

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

Step 2: Then multiply all the prime factors GCF(12, 87, 42, 308) = 1.