Greatest Common Factor of 42, 57, 15, 185

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

• Greatest Common Factor of 42, 57, 15, 185 by common division method
• Greatest Common Factor of 42, 57, 15, 185 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 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 185

List of positive integer factors of 185 that divides 185 without a remainder.

1,5,37,185

Greatest Common Factor

We found the factors 42,57,15,185 . The biggest common factor number is the GCF number.
So the greatest common factor 42,57,15,185 is 1.

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

• GCF of 90, 38, 28, 660
• GCF of 18, 55, 21, 318
• GCF of 69, 75, 65, 162
• GCF of 45, 32, 57, 347
• GCF of 81, 42, 39, 220

1. What is the GCF of 42, 57, 15, 185?

Answer: GCF of 42, 57, 15, 185 is 1.

2. How to Find the GCF of 42, 57, 15, 185

Answer: Greatest Common Factor(GCF) of 42, 57, 15, 185 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 57, 15, 185) = 1.