Greatest Common Factor of 721, 827, 21

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

• Greatest Common Factor of 721, 827, 21 by common division method
• Greatest Common Factor of 721, 827, 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 721

List of positive integer factors of 721 that divides 721 without a remainder.

1,7,103,721

Factors of 827

List of positive integer factors of 827 that divides 827 without a remainder.

1,827

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 721,827,21 . The biggest common factor number is the GCF number.
So the greatest common factor 721,827,21 is 1.

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

• GCF of 339, 661, 82
• GCF of 565, 745, 59
• GCF of 508, 358, 72
• GCF of 450, 631, 52
• GCF of 918, 760, 76

1. What is the GCF of 721, 827, 21?

Answer: GCF of 721, 827, 21 is 1.

2. How to Find the GCF of 721, 827, 21

Answer: Greatest Common Factor(GCF) of 721, 827, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(721, 827, 21) = 1.