Greatest Common Factor of 665, 161, 420

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

• Greatest Common Factor of 665, 161, 420 by common division method
• Greatest Common Factor of 665, 161, 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 7 = 7

Factors of 665

List of positive integer factors of 665 that divides 665 without a remainder.

1,5,7,19,35,95,133,665

Factors of 161

List of positive integer factors of 161 that divides 161 without a remainder.

1,7,23,161

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 665,161,420 . The biggest common factor number is the GCF number.
So the greatest common factor 665,161,420 is 7.

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

• GCF of 791, 176, 881
• GCF of 323, 579, 316
• GCF of 560, 356, 648
• GCF of 628, 998, 125
• GCF of 324, 843, 821

1. What is the GCF of 665, 161, 420?

Answer: GCF of 665, 161, 420 is 7.

2. How to Find the GCF of 665, 161, 420

Answer: Greatest Common Factor(GCF) of 665, 161, 420 = 7

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

Step 2: Then multiply all the prime factors GCF(665, 161, 420) = 7.