Greatest Common Factor of 21, 30, 43, 315

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

• Greatest Common Factor of 21, 30, 43, 315 by common division method
• Greatest Common Factor of 21, 30, 43, 315 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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 315

List of positive integer factors of 315 that divides 315 without a remainder.

1,3,5,7,9,15,21,35,45,63,105,315

Greatest Common Factor

We found the factors 21,30,43,315 . The biggest common factor number is the GCF number.
So the greatest common factor 21,30,43,315 is 1.

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

• GCF of 55, 61, 22, 546
• GCF of 64, 87, 14, 812
• GCF of 16, 96, 85, 429
• GCF of 63, 80, 70, 825
• GCF of 54, 17, 39, 868

1. What is the GCF of 21, 30, 43, 315?

Answer: GCF of 21, 30, 43, 315 is 1.

2. How to Find the GCF of 21, 30, 43, 315

Answer: Greatest Common Factor(GCF) of 21, 30, 43, 315 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 30, 43, 315) = 1.