Greatest Common Factor of 42, 1, 10, 7

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

• Greatest Common Factor of 42, 1, 10, 7 by common division method
• Greatest Common Factor of 42, 1, 10, 7 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 1

List of positive integer factors of 1 that divides 1 without a remainder.

1

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 7

List of positive integer factors of 7 that divides 7 without a remainder.

1,7

Greatest Common Factor

We found the factors 42,1,10,7 . The biggest common factor number is the GCF number.
So the greatest common factor 42,1,10,7 is 1.

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

• GCF of 15, 1, 47, 9
• GCF of 83, 8, 90, 5
• GCF of 77, 6, 14, 2
• GCF of 10, 3, 42, 7
• GCF of 21, 7, 20, 4

1. What is the GCF of 42, 1, 10, 7?

Answer: GCF of 42, 1, 10, 7 is 1.

2. How to Find the GCF of 42, 1, 10, 7

Answer: Greatest Common Factor(GCF) of 42, 1, 10, 7 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 1, 10, 7) = 1.