Greatest Common Factor of 87, 21, 42, 147

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

• Greatest Common Factor of 87, 21, 42, 147 by common division method
• Greatest Common Factor of 87, 21, 42, 147 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 87

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

1,3,29,87

Factors of 21

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

1,3,7,21

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 147

List of positive integer factors of 147 that divides 147 without a remainder.

1,3,7,21,49,147

Greatest Common Factor

We found the factors 87,21,42,147 . The biggest common factor number is the GCF number.
So the greatest common factor 87,21,42,147 is 3.

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

• GCF of 67, 88, 18, 417
• GCF of 20, 47, 65, 749
• GCF of 53, 74, 97, 899
• GCF of 73, 99, 32, 560
• GCF of 61, 52, 84, 395

1. What is the GCF of 87, 21, 42, 147?

Answer: GCF of 87, 21, 42, 147 is 3.

2. How to Find the GCF of 87, 21, 42, 147

Answer: Greatest Common Factor(GCF) of 87, 21, 42, 147 = 3

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

Step 2: Then multiply all the prime factors GCF(87, 21, 42, 147) = 3.