Greatest Common Factor of 60, 63, 21, 784

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

• Greatest Common Factor of 60, 63, 21, 784 by common division method
• Greatest Common Factor of 60, 63, 21, 784 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 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 21

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

1,3,7,21

Factors of 784

List of positive integer factors of 784 that divides 784 without a remainder.

1,2,4,7,8,14,16,28,49,56,98,112,196,392,784

Greatest Common Factor

We found the factors 60,63,21,784 . The biggest common factor number is the GCF number.
So the greatest common factor 60,63,21,784 is 1.

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

• GCF of 82, 15, 39, 825
• GCF of 95, 32, 66, 758
• GCF of 70, 76, 20, 134
• GCF of 41, 38, 65, 536
• GCF of 78, 51, 36, 629

1. What is the GCF of 60, 63, 21, 784?

Answer: GCF of 60, 63, 21, 784 is 1.

2. How to Find the GCF of 60, 63, 21, 784

Answer: Greatest Common Factor(GCF) of 60, 63, 21, 784 = 1

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

Step 2: Then multiply all the prime factors GCF(60, 63, 21, 784) = 1.