Greatest Common Factor of 21, 16, 37, 634

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

• Greatest Common Factor of 21, 16, 37, 634 by common division method
• Greatest Common Factor of 21, 16, 37, 634 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 16

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

1,2,4,8,16

Factors of 37

List of positive integer factors of 37 that divides 37 without a remainder.

1,37

Factors of 634

List of positive integer factors of 634 that divides 634 without a remainder.

1,2,317,634

Greatest Common Factor

We found the factors 21,16,37,634 . The biggest common factor number is the GCF number.
So the greatest common factor 21,16,37,634 is 1.

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

• GCF of 18, 95, 11, 697
• GCF of 84, 99, 96, 462
• GCF of 31, 94, 29, 155
• GCF of 17, 66, 49, 366
• GCF of 24, 24, 97, 277

1. What is the GCF of 21, 16, 37, 634?

Answer: GCF of 21, 16, 37, 634 is 1.

2. How to Find the GCF of 21, 16, 37, 634

Answer: Greatest Common Factor(GCF) of 21, 16, 37, 634 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 16, 37, 634) = 1.