Greatest Common Factor of 42, 65, 57, 402

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

• Greatest Common Factor of 42, 65, 57, 402 by common division method
• Greatest Common Factor of 42, 65, 57, 402 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 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 57

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

1,3,19,57

Factors of 402

List of positive integer factors of 402 that divides 402 without a remainder.

1,2,3,6,67,134,201,402

Greatest Common Factor

We found the factors 42,65,57,402 . The biggest common factor number is the GCF number.
So the greatest common factor 42,65,57,402 is 1.

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

• GCF of 10, 94, 59, 298
• GCF of 27, 91, 79, 215
• GCF of 16, 14, 66, 419
• GCF of 35, 52, 34, 898
• GCF of 57, 17, 14, 128

1. What is the GCF of 42, 65, 57, 402?

Answer: GCF of 42, 65, 57, 402 is 1.

2. How to Find the GCF of 42, 65, 57, 402

Answer: Greatest Common Factor(GCF) of 42, 65, 57, 402 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 65, 57, 402) = 1.