Greatest Common Factor of 30, 75, 61, 770

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

• Greatest Common Factor of 30, 75, 61, 770 by common division method
• Greatest Common Factor of 30, 75, 61, 770 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 30

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

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

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 770

List of positive integer factors of 770 that divides 770 without a remainder.

1,2,5,7,10,11,14,22,35,55,70,77,110,154,385,770

Greatest Common Factor

We found the factors 30,75,61,770 . The biggest common factor number is the GCF number.
So the greatest common factor 30,75,61,770 is 1.

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

• GCF of 30, 65, 63, 555
• GCF of 13, 64, 54, 347
• GCF of 84, 14, 32, 531
• GCF of 85, 90, 91, 143
• GCF of 25, 52, 37, 664

1. What is the GCF of 30, 75, 61, 770?

Answer: GCF of 30, 75, 61, 770 is 1.

2. How to Find the GCF of 30, 75, 61, 770

Answer: Greatest Common Factor(GCF) of 30, 75, 61, 770 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 75, 61, 770) = 1.