Greatest Common Factor of 640, 870, 990

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

• Greatest Common Factor of 640, 870, 990 by common division method
• Greatest Common Factor of 640, 870, 990 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 x 5 = 10

Factors of 640

List of positive integer factors of 640 that divides 640 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640

Factors of 870

List of positive integer factors of 870 that divides 870 without a remainder.

1,2,3,5,6,10,15,29,30,58,87,145,174,290,435,870

Factors of 990

List of positive integer factors of 990 that divides 990 without a remainder.

1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990

Greatest Common Factor

We found the factors 640,870,990 . The biggest common factor number is the GCF number.
So the greatest common factor 640,870,990 is 10.

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

• GCF of 606, 477, 463
• GCF of 151, 610, 248
• GCF of 480, 706, 237
• GCF of 277, 891, 373
• GCF of 503, 633, 326

1. What is the GCF of 640, 870, 990?

Answer: GCF of 640, 870, 990 is 10.

2. How to Find the GCF of 640, 870, 990

Answer: Greatest Common Factor(GCF) of 640, 870, 990 = 10

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

Step 2: Then multiply all the prime factors GCF(640, 870, 990) = 10.