Greatest Common Factor of 21, 87, 51, 58

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

• Greatest Common Factor of 21, 87, 51, 58 by common division method
• Greatest Common Factor of 21, 87, 51, 58 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ 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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 58

List of positive integer factors of 58 that divides 58 without a remainder.

1,2,29,58

Greatest Common Factor

We found the factors 21,87,51,58 . The biggest common factor number is the GCF number.
So the greatest common factor 21,87,51,58 is 1.

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

• GCF of 34, 26, 99, 48
• GCF of 40, 43, 88, 31
• GCF of 55, 41, 39, 30
• GCF of 32, 83, 29, 20
• GCF of 38, 54, 79, 15

1. What is the GCF of 21, 87, 51, 58?

Answer: GCF of 21, 87, 51, 58 is 1.

2. How to Find the GCF of 21, 87, 51, 58

Answer: Greatest Common Factor(GCF) of 21, 87, 51, 58 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 87, 51, 58) = 1.