Greatest Common Factor of 801, 251, 21

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

• Greatest Common Factor of 801, 251, 21 by common division method
• Greatest Common Factor of 801, 251, 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 801

List of positive integer factors of 801 that divides 801 without a remainder.

1,3,9,89,267,801

Factors of 251

List of positive integer factors of 251 that divides 251 without a remainder.

1,251

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 801,251,21 . The biggest common factor number is the GCF number.
So the greatest common factor 801,251,21 is 1.

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

• GCF of 879, 751, 86
• GCF of 460, 694, 49
• GCF of 968, 656, 27
• GCF of 809, 603, 38
• GCF of 514, 111, 24

1. What is the GCF of 801, 251, 21?

Answer: GCF of 801, 251, 21 is 1.

2. How to Find the GCF of 801, 251, 21

Answer: Greatest Common Factor(GCF) of 801, 251, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(801, 251, 21) = 1.