Greatest Common Factor of 21, 169, 357

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

• Greatest Common Factor of 21, 169, 357 by common division method
• Greatest Common Factor of 21, 169, 357 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 21

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

1,3,7,21

Factors of 169

List of positive integer factors of 169 that divides 169 without a remainder.

1,13,169

Factors of 357

List of positive integer factors of 357 that divides 357 without a remainder.

1,3,7,17,21,51,119,357

Greatest Common Factor

We found the factors 21,169,357 . The biggest common factor number is the GCF number.
So the greatest common factor 21,169,357 is 1.

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

• GCF of 66, 153, 803
• GCF of 44, 675, 617
• GCF of 71, 279, 267
• GCF of 31, 203, 285
• GCF of 50, 620, 765

1. What is the GCF of 21, 169, 357?

Answer: GCF of 21, 169, 357 is 1.

2. How to Find the GCF of 21, 169, 357

Answer: Greatest Common Factor(GCF) of 21, 169, 357 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 169, 357) = 1.