Greatest Common Factor of 70, 21, 890

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

• Greatest Common Factor of 70, 21, 890 by common division method
• Greatest Common Factor of 70, 21, 890 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 890

List of positive integer factors of 890 that divides 890 without a remainder.

1,2,5,10,89,178,445,890

Greatest Common Factor

We found the factors 70,21,890 . The biggest common factor number is the GCF number.
So the greatest common factor 70,21,890 is 1.

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

• GCF of 24, 34, 396
• GCF of 63, 10, 610
• GCF of 12, 36, 838
• GCF of 73, 96, 446
• GCF of 52, 40, 734

1. What is the GCF of 70, 21, 890?

Answer: GCF of 70, 21, 890 is 1.

2. How to Find the GCF of 70, 21, 890

Answer: Greatest Common Factor(GCF) of 70, 21, 890 = 1

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

Step 2: Then multiply all the prime factors GCF(70, 21, 890) = 1.