Greatest Common Factor of 69, 10, 30, 21, 858

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

• Greatest Common Factor of 69, 10, 30, 21, 858 by common division method
• Greatest Common Factor of 69, 10, 30, 21, 858 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 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 858

List of positive integer factors of 858 that divides 858 without a remainder.

1,2,3,6,11,13,22,26,33,39,66,78,143,286,429,858

Greatest Common Factor

We found the factors 69,10,30,21,858 . The biggest common factor number is the GCF number.
So the greatest common factor 69,10,30,21,858 is 1.

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

• GCF of 12, 18, 16, 11, 585
• GCF of 85, 28, 69, 16, 813
• GCF of 18, 63, 94, 46, 445
• GCF of 47, 61, 24, 85, 341
• GCF of 52, 67, 55, 90, 870

1. What is the GCF of 69, 10, 30, 21, 858?

Answer: GCF of 69, 10, 30, 21, 858 is 1.

2. How to Find the GCF of 69, 10, 30, 21, 858

Answer: Greatest Common Factor(GCF) of 69, 10, 30, 21, 858 = 1

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

Step 2: Then multiply all the prime factors GCF(69, 10, 30, 21, 858) = 1.