Greatest Common Factor of 21, 32, 16, 355

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

• Greatest Common Factor of 21, 32, 16, 355 by common division method
• Greatest Common Factor of 21, 32, 16, 355 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 32

List of positive integer factors of 32 that divides 32 without a remainder.

1,2,4,8,16,32

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 355

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

1,5,71,355

Greatest Common Factor

We found the factors 21,32,16,355 . The biggest common factor number is the GCF number.
So the greatest common factor 21,32,16,355 is 1.

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

• GCF of 87, 80, 92, 448
• GCF of 60, 66, 88, 395
• GCF of 27, 67, 53, 989
• GCF of 90, 45, 12, 520
• GCF of 45, 78, 90, 921

1. What is the GCF of 21, 32, 16, 355?

Answer: GCF of 21, 32, 16, 355 is 1.

2. How to Find the GCF of 21, 32, 16, 355

Answer: Greatest Common Factor(GCF) of 21, 32, 16, 355 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 32, 16, 355) = 1.