Greatest Common Factor of 345, 690, 60

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

• Greatest Common Factor of 345, 690, 60 by common division method
• Greatest Common Factor of 345, 690, 60 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 x 5 = 15

Factors of 345

List of positive integer factors of 345 that divides 345 without a remainder.

1,3,5,15,23,69,115,345

Factors of 690

List of positive integer factors of 690 that divides 690 without a remainder.

1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Greatest Common Factor

We found the factors 345,690,60 . The biggest common factor number is the GCF number.
So the greatest common factor 345,690,60 is 15.

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

• GCF of 191, 397, 42
• GCF of 471, 821, 67
• GCF of 448, 640, 44
• GCF of 138, 475, 51
• GCF of 526, 374, 12

1. What is the GCF of 345, 690, 60?

Answer: GCF of 345, 690, 60 is 15.

2. How to Find the GCF of 345, 690, 60

Answer: Greatest Common Factor(GCF) of 345, 690, 60 = 15

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

Step 2: Then multiply all the prime factors GCF(345, 690, 60) = 15.