Greatest Common Factor of 840, 210, 161

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

• Greatest Common Factor of 840, 210, 161 by common division method
• Greatest Common Factor of 840, 210, 161 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 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

Factors of 210

List of positive integer factors of 210 that divides 210 without a remainder.

1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210

Factors of 161

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

1,7,23,161

Greatest Common Factor

We found the factors 840,210,161 . The biggest common factor number is the GCF number.
So the greatest common factor 840,210,161 is 7.

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

• GCF of 795, 140, 580
• GCF of 741, 515, 721
• GCF of 881, 578, 716
• GCF of 849, 282, 427
• GCF of 389, 126, 124

1. What is the GCF of 840, 210, 161?

Answer: GCF of 840, 210, 161 is 7.

2. How to Find the GCF of 840, 210, 161

Answer: Greatest Common Factor(GCF) of 840, 210, 161 = 7

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

Step 2: Then multiply all the prime factors GCF(840, 210, 161) = 7.