Greatest Common Factor of 25, 12, 640

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

• Greatest Common Factor of 25, 12, 640 by common division method
• Greatest Common Factor of 25, 12, 640 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

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

Greatest Common Factor

We found the factors 25,12,640 . The biggest common factor number is the GCF number.
So the greatest common factor 25,12,640 is 1.

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

• GCF of 23, 30, 530
• GCF of 26, 94, 741
• GCF of 74, 67, 470
• GCF of 42, 11, 184
• GCF of 99, 25, 334

1. What is the GCF of 25, 12, 640?

Answer: GCF of 25, 12, 640 is 1.

2. How to Find the GCF of 25, 12, 640

Answer: Greatest Common Factor(GCF) of 25, 12, 640 = 1

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

Step 2: Then multiply all the prime factors GCF(25, 12, 640) = 1.