Greatest Common Factor of 997, 475, 21

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

• Greatest Common Factor of 997, 475, 21 by common division method
• Greatest Common Factor of 997, 475, 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 997

List of positive integer factors of 997 that divides 997 without a remainder.

1,997

Factors of 475

List of positive integer factors of 475 that divides 475 without a remainder.

1,5,19,25,95,475

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 997,475,21 . The biggest common factor number is the GCF number.
So the greatest common factor 997,475,21 is 1.

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

• GCF of 960, 427, 57
• GCF of 573, 187, 71
• GCF of 611, 476, 28
• GCF of 250, 257, 56
• GCF of 447, 402, 81

1. What is the GCF of 997, 475, 21?

Answer: GCF of 997, 475, 21 is 1.

2. How to Find the GCF of 997, 475, 21

Answer: Greatest Common Factor(GCF) of 997, 475, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(997, 475, 21) = 1.