Greatest Common Factor of 1, 10, 30, 77

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

• Greatest Common Factor of 1, 10, 30, 77 by common division method
• Greatest Common Factor of 1, 10, 30, 77 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 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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Greatest Common Factor

We found the factors 1,10,30,77 . The biggest common factor number is the GCF number.
So the greatest common factor 1,10,30,77 is 1.

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

• GCF of 5, 62, 89, 21
• GCF of 8, 38, 74, 68
• GCF of 1, 40, 41, 59
• GCF of 6, 48, 89, 10
• GCF of 1, 83, 63, 83

1. What is the GCF of 1, 10, 30, 77?

Answer: GCF of 1, 10, 30, 77 is 1.

2. How to Find the GCF of 1, 10, 30, 77

Answer: Greatest Common Factor(GCF) of 1, 10, 30, 77 = 1

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

Step 2: Then multiply all the prime factors GCF(1, 10, 30, 77) = 1.