Greatest Common Factor of 355, 386, 21

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

• Greatest Common Factor of 355, 386, 21 by common division method
• Greatest Common Factor of 355, 386, 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 355

List of positive integer factors of 355 that divides 355 without a remainder.

1,5,71,355

Factors of 386

List of positive integer factors of 386 that divides 386 without a remainder.

1,2,193,386

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 355,386,21 . The biggest common factor number is the GCF number.
So the greatest common factor 355,386,21 is 1.

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

• GCF of 385, 371, 42
• GCF of 633, 211, 67
• GCF of 614, 307, 76
• GCF of 250, 257, 22
• GCF of 251, 421, 56

1. What is the GCF of 355, 386, 21?

Answer: GCF of 355, 386, 21 is 1.

2. How to Find the GCF of 355, 386, 21

Answer: Greatest Common Factor(GCF) of 355, 386, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(355, 386, 21) = 1.