Greatest Common Factor of 21, 86, 51, 144

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

• Greatest Common Factor of 21, 86, 51, 144 by common division method
• Greatest Common Factor of 21, 86, 51, 144 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 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

Factors of 51

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

1,3,17,51

Factors of 144

List of positive integer factors of 144 that divides 144 without a remainder.

1,2,3,4,6,8,9,12,16,18,24,36,48,72,144

Greatest Common Factor

We found the factors 21,86,51,144 . The biggest common factor number is the GCF number.
So the greatest common factor 21,86,51,144 is 1.

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

• GCF of 94, 36, 96, 486
• GCF of 73, 72, 85, 446
• GCF of 63, 44, 43, 507
• GCF of 86, 94, 51, 806
• GCF of 37, 60, 15, 916

1. What is the GCF of 21, 86, 51, 144?

Answer: GCF of 21, 86, 51, 144 is 1.

2. How to Find the GCF of 21, 86, 51, 144

Answer: Greatest Common Factor(GCF) of 21, 86, 51, 144 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 86, 51, 144) = 1.