Greatest Common Factor of 21, 96, 57, 98

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

• Greatest Common Factor of 21, 96, 57, 98 by common division method
• Greatest Common Factor of 21, 96, 57, 98 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 96

List of positive integer factors of 96 that divides 96 without a remainder.

1,2,3,4,6,8,12,16,24,32,48,96

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Greatest Common Factor

We found the factors 21,96,57,98 . The biggest common factor number is the GCF number.
So the greatest common factor 21,96,57,98 is 1.

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

• GCF of 36, 97, 77, 66
• GCF of 38, 74, 66, 54
• GCF of 62, 81, 45, 92
• GCF of 21, 37, 77, 66
• GCF of 42, 59, 53, 33

1. What is the GCF of 21, 96, 57, 98?

Answer: GCF of 21, 96, 57, 98 is 1.

2. How to Find the GCF of 21, 96, 57, 98

Answer: Greatest Common Factor(GCF) of 21, 96, 57, 98 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 96, 57, 98) = 1.