Greatest Common Factor of 30, 345, 780

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

• Greatest Common Factor of 30, 345, 780 by common division method
• Greatest Common Factor of 30, 345, 780 with matching the biggest common factor

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

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

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 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Greatest Common Factor

We found the factors 30,345,780 . The biggest common factor number is the GCF number.
So the greatest common factor 30,345,780 is 15.

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

• GCF of 29, 272, 841
• GCF of 50, 388, 344
• GCF of 23, 995, 343
• GCF of 59, 473, 147
• GCF of 19, 947, 634

1. What is the GCF of 30, 345, 780?

Answer: GCF of 30, 345, 780 is 15.

2. How to Find the GCF of 30, 345, 780

Answer: Greatest Common Factor(GCF) of 30, 345, 780 = 15

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

Step 2: Then multiply all the prime factors GCF(30, 345, 780) = 15.