Greatest Common Factor of 451, 80, 21

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

• Greatest Common Factor of 451, 80, 21 by common division method
• Greatest Common Factor of 451, 80, 21 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 451

List of positive integer factors of 451 that divides 451 without a remainder.

1,11,41,451

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 451,80,21 . The biggest common factor number is the GCF number.
So the greatest common factor 451,80,21 is 1.

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

• GCF of 681, 69, 11
• GCF of 152, 22, 76
• GCF of 374, 27, 42
• GCF of 858, 56, 59
• GCF of 623, 11, 79

1. What is the GCF of 451, 80, 21?

Answer: GCF of 451, 80, 21 is 1.

2. How to Find the GCF of 451, 80, 21

Answer: Greatest Common Factor(GCF) of 451, 80, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(451, 80, 21) = 1.