Greatest Common Factor of 51, 21, 487

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

• Greatest Common Factor of 51, 21, 487 by common division method
• Greatest Common Factor of 51, 21, 487 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 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 21

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

1,3,7,21

Factors of 487

List of positive integer factors of 487 that divides 487 without a remainder.

1,487

Greatest Common Factor

We found the factors 51,21,487 . The biggest common factor number is the GCF number.
So the greatest common factor 51,21,487 is 1.

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

• GCF of 57, 66, 483
• GCF of 61, 80, 414
• GCF of 79, 88, 615
• GCF of 96, 79, 297
• GCF of 35, 12, 578

1. What is the GCF of 51, 21, 487?

Answer: GCF of 51, 21, 487 is 1.

2. How to Find the GCF of 51, 21, 487

Answer: Greatest Common Factor(GCF) of 51, 21, 487 = 1

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

Step 2: Then multiply all the prime factors GCF(51, 21, 487) = 1.