Greatest Common Factor of 70, 64, 25, 421

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

• Greatest Common Factor of 70, 64, 25, 421 by common division method
• Greatest Common Factor of 70, 64, 25, 421 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 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 25

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

1,5,25

Factors of 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Greatest Common Factor

We found the factors 70,64,25,421 . The biggest common factor number is the GCF number.
So the greatest common factor 70,64,25,421 is 1.

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

• GCF of 70, 91, 48, 198
• GCF of 54, 26, 79, 824
• GCF of 97, 31, 34, 987
• GCF of 50, 51, 60, 989
• GCF of 45, 42, 82, 173

1. What is the GCF of 70, 64, 25, 421?

Answer: GCF of 70, 64, 25, 421 is 1.

2. How to Find the GCF of 70, 64, 25, 421

Answer: Greatest Common Factor(GCF) of 70, 64, 25, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(70, 64, 25, 421) = 1.