Greatest Common Factor of 21, 42, 73, 986

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

• Greatest Common Factor of 21, 42, 73, 986 by common division method
• Greatest Common Factor of 21, 42, 73, 986 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 21

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

1,3,7,21

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 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 986

List of positive integer factors of 986 that divides 986 without a remainder.

1,2,17,29,34,58,493,986

Greatest Common Factor

We found the factors 21,42,73,986 . The biggest common factor number is the GCF number.
So the greatest common factor 21,42,73,986 is 1.

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

• GCF of 45, 31, 67, 607
• GCF of 62, 92, 12, 449
• GCF of 23, 30, 84, 155
• GCF of 50, 15, 15, 347
• GCF of 22, 68, 41, 676

1. What is the GCF of 21, 42, 73, 986?

Answer: GCF of 21, 42, 73, 986 is 1.

2. How to Find the GCF of 21, 42, 73, 986

Answer: Greatest Common Factor(GCF) of 21, 42, 73, 986 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 42, 73, 986) = 1.