Greatest Common Factor of 21, 72, 93, 553

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

• Greatest Common Factor of 21, 72, 93, 553 by common division method
• Greatest Common Factor of 21, 72, 93, 553 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 93

List of positive integer factors of 93 that divides 93 without a remainder.

1,3,31,93

Factors of 553

List of positive integer factors of 553 that divides 553 without a remainder.

1,7,79,553

Greatest Common Factor

We found the factors 21,72,93,553 . The biggest common factor number is the GCF number.
So the greatest common factor 21,72,93,553 is 1.

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

• GCF of 86, 28, 17, 740
• GCF of 77, 65, 21, 870
• GCF of 89, 44, 22, 887
• GCF of 52, 75, 26, 686
• GCF of 30, 46, 89, 711

1. What is the GCF of 21, 72, 93, 553?

Answer: GCF of 21, 72, 93, 553 is 1.

2. How to Find the GCF of 21, 72, 93, 553

Answer: Greatest Common Factor(GCF) of 21, 72, 93, 553 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 72, 93, 553) = 1.