Greatest Common Factor of 42, 27, 81, 248

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

• Greatest Common Factor of 42, 27, 81, 248 by common division method
• Greatest Common Factor of 42, 27, 81, 248 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 42

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

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

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 248

List of positive integer factors of 248 that divides 248 without a remainder.

1,2,4,8,31,62,124,248

Greatest Common Factor

We found the factors 42,27,81,248 . The biggest common factor number is the GCF number.
So the greatest common factor 42,27,81,248 is 1.

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

• GCF of 51, 73, 36, 689
• GCF of 79, 32, 86, 294
• GCF of 42, 37, 44, 977
• GCF of 78, 58, 56, 895
• GCF of 73, 49, 81, 587

1. What is the GCF of 42, 27, 81, 248?

Answer: GCF of 42, 27, 81, 248 is 1.

2. How to Find the GCF of 42, 27, 81, 248

Answer: Greatest Common Factor(GCF) of 42, 27, 81, 248 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 27, 81, 248) = 1.