Greatest Common Factor of 21, 90, 62, 2, 51

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

• Greatest Common Factor of 21, 90, 62, 2, 51 by common division method
• Greatest Common Factor of 21, 90, 62, 2, 51 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 62

List of positive integer factors of 62 that divides 62 without a remainder.

1,2,31,62

Factors of 2

List of positive integer factors of 2 that divides 2 without a remainder.

1,2

Factors of 51

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

1,3,17,51

Greatest Common Factor

We found the factors 21,90,62,2,51 . The biggest common factor number is the GCF number.
So the greatest common factor 21,90,62,2,51 is 1.

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

• GCF of 55, 65, 65, 4, 36
• GCF of 40, 74, 55, 7, 20
• GCF of 31, 90, 10, 1, 95
• GCF of 45, 34, 19, 6, 58
• GCF of 55, 82, 32, 6, 48

1. What is the GCF of 21, 90, 62, 2, 51?

Answer: GCF of 21, 90, 62, 2, 51 is 1.

2. How to Find the GCF of 21, 90, 62, 2, 51

Answer: Greatest Common Factor(GCF) of 21, 90, 62, 2, 51 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 90, 62, 2, 51) = 1.