Greatest Common Factor of 42, 76, 49, 128

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

• Greatest Common Factor of 42, 76, 49, 128 by common division method
• Greatest Common Factor of 42, 76, 49, 128 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 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 128

List of positive integer factors of 128 that divides 128 without a remainder.

1,2,4,8,16,32,64,128

Greatest Common Factor

We found the factors 42,76,49,128 . The biggest common factor number is the GCF number.
So the greatest common factor 42,76,49,128 is 1.

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

• GCF of 95, 44, 16, 115
• GCF of 90, 80, 65, 241
• GCF of 71, 36, 31, 772
• GCF of 70, 56, 12, 948
• GCF of 55, 34, 39, 455

1. What is the GCF of 42, 76, 49, 128?

Answer: GCF of 42, 76, 49, 128 is 1.

2. How to Find the GCF of 42, 76, 49, 128

Answer: Greatest Common Factor(GCF) of 42, 76, 49, 128 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 76, 49, 128) = 1.