Greatest Common Factor of 408, 773, 21

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

• Greatest Common Factor of 408, 773, 21 by common division method
• Greatest Common Factor of 408, 773, 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 408

List of positive integer factors of 408 that divides 408 without a remainder.

1,2,3,4,6,8,12,17,24,34,51,68,102,136,204,408

Factors of 773

List of positive integer factors of 773 that divides 773 without a remainder.

1,773

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 408,773,21 . The biggest common factor number is the GCF number.
So the greatest common factor 408,773,21 is 1.

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

• GCF of 303, 504, 21
• GCF of 874, 185, 52
• GCF of 232, 353, 17
• GCF of 777, 517, 38
• GCF of 126, 445, 94

1. What is the GCF of 408, 773, 21?

Answer: GCF of 408, 773, 21 is 1.

2. How to Find the GCF of 408, 773, 21

Answer: Greatest Common Factor(GCF) of 408, 773, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(408, 773, 21) = 1.