Greatest Common Factor of 70, 21, 84, 216

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

• Greatest Common Factor of 70, 21, 84, 216 by common division method
• Greatest Common Factor of 70, 21, 84, 216 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 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 216

List of positive integer factors of 216 that divides 216 without a remainder.

1,2,3,4,6,8,9,12,18,24,27,36,54,72,108,216

Greatest Common Factor

We found the factors 70,21,84,216 . The biggest common factor number is the GCF number.
So the greatest common factor 70,21,84,216 is 1.

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

• GCF of 44, 81, 45, 553
• GCF of 50, 33, 50, 923
• GCF of 12, 49, 61, 395
• GCF of 23, 67, 30, 569
• GCF of 60, 61, 51, 980

1. What is the GCF of 70, 21, 84, 216?

Answer: GCF of 70, 21, 84, 216 is 1.

2. How to Find the GCF of 70, 21, 84, 216

Answer: Greatest Common Factor(GCF) of 70, 21, 84, 216 = 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, 84, 216) = 1.