Greatest Common Factor of 31, 42, 51, 105

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

• Greatest Common Factor of 31, 42, 51, 105 by common division method
• Greatest Common Factor of 31, 42, 51, 105 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

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 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 105

List of positive integer factors of 105 that divides 105 without a remainder.

1,3,5,7,15,21,35,105

Greatest Common Factor

We found the factors 31,42,51,105 . The biggest common factor number is the GCF number.
So the greatest common factor 31,42,51,105 is 1.

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

• GCF of 63, 99, 74, 683
• GCF of 82, 72, 94, 163
• GCF of 52, 33, 76, 472
• GCF of 55, 18, 63, 239
• GCF of 30, 63, 88, 325

1. What is the GCF of 31, 42, 51, 105?

Answer: GCF of 31, 42, 51, 105 is 1.

2. How to Find the GCF of 31, 42, 51, 105

Answer: Greatest Common Factor(GCF) of 31, 42, 51, 105 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 42, 51, 105) = 1.