Greatest Common Factor of 21, 98, 96, 61

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

• Greatest Common Factor of 21, 98, 96, 61 by common division method
• Greatest Common Factor of 21, 98, 96, 61 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 98

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

1,2,7,14,49,98

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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Greatest Common Factor

We found the factors 21,98,96,61 . The biggest common factor number is the GCF number.
So the greatest common factor 21,98,96,61 is 1.

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

• GCF of 21, 47, 93, 72
• GCF of 25, 44, 14, 76
• GCF of 55, 13, 25, 25
• GCF of 18, 11, 25, 69
• GCF of 29, 35, 51, 30

1. What is the GCF of 21, 98, 96, 61?

Answer: GCF of 21, 98, 96, 61 is 1.

2. How to Find the GCF of 21, 98, 96, 61

Answer: Greatest Common Factor(GCF) of 21, 98, 96, 61 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 98, 96, 61) = 1.