Greatest Common Factor of 21, 45, 71, 201

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

• Greatest Common Factor of 21, 45, 71, 201 by common division method
• Greatest Common Factor of 21, 45, 71, 201 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 201

List of positive integer factors of 201 that divides 201 without a remainder.

1,3,67,201

Greatest Common Factor

We found the factors 21,45,71,201 . The biggest common factor number is the GCF number.
So the greatest common factor 21,45,71,201 is 1.

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

• GCF of 39, 57, 38, 660
• GCF of 28, 58, 87, 232
• GCF of 54, 85, 26, 432
• GCF of 46, 58, 93, 186
• GCF of 44, 99, 95, 313

1. What is the GCF of 21, 45, 71, 201?

Answer: GCF of 21, 45, 71, 201 is 1.

2. How to Find the GCF of 21, 45, 71, 201

Answer: Greatest Common Factor(GCF) of 21, 45, 71, 201 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 45, 71, 201) = 1.