Greatest Common Factor of 90, 285, 420

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

• Greatest Common Factor of 90, 285, 420 by common division method
• Greatest Common Factor of 90, 285, 420 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 x 5 = 15

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 285

List of positive integer factors of 285 that divides 285 without a remainder.

1,3,5,15,19,57,95,285

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 90,285,420 . The biggest common factor number is the GCF number.
So the greatest common factor 90,285,420 is 15.

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

• GCF of 20, 355, 900
• GCF of 79, 846, 332
• GCF of 13, 258, 967
• GCF of 51, 170, 593
• GCF of 14, 152, 115

1. What is the GCF of 90, 285, 420?

Answer: GCF of 90, 285, 420 is 15.

2. How to Find the GCF of 90, 285, 420

Answer: Greatest Common Factor(GCF) of 90, 285, 420 = 15

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

Step 2: Then multiply all the prime factors GCF(90, 285, 420) = 15.