Greatest Common Factor of 72, 40, 21, 823

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

• Greatest Common Factor of 72, 40, 21, 823 by common division method
• Greatest Common Factor of 72, 40, 21, 823 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 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 823

List of positive integer factors of 823 that divides 823 without a remainder.

1,823

Greatest Common Factor

We found the factors 72,40,21,823 . The biggest common factor number is the GCF number.
So the greatest common factor 72,40,21,823 is 1.

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

• GCF of 79, 15, 42, 939
• GCF of 27, 40, 14, 384
• GCF of 62, 61, 65, 461
• GCF of 47, 40, 66, 521
• GCF of 93, 59, 57, 267

1. What is the GCF of 72, 40, 21, 823?

Answer: GCF of 72, 40, 21, 823 is 1.

2. How to Find the GCF of 72, 40, 21, 823

Answer: Greatest Common Factor(GCF) of 72, 40, 21, 823 = 1

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

Step 2: Then multiply all the prime factors GCF(72, 40, 21, 823) = 1.