Greatest Common Factor of 21, 57, 416

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

• Greatest Common Factor of 21, 57, 416 by common division method
• Greatest Common Factor of 21, 57, 416 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 21

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

1,3,7,21

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 416

List of positive integer factors of 416 that divides 416 without a remainder.

1,2,4,8,13,16,26,32,52,104,208,416

Greatest Common Factor

We found the factors 21,57,416 . The biggest common factor number is the GCF number.
So the greatest common factor 21,57,416 is 1.

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

• GCF of 61, 93, 530
• GCF of 62, 62, 449
• GCF of 80, 52, 208
• GCF of 11, 66, 189
• GCF of 63, 44, 135

1. What is the GCF of 21, 57, 416?

Answer: GCF of 21, 57, 416 is 1.

2. How to Find the GCF of 21, 57, 416

Answer: Greatest Common Factor(GCF) of 21, 57, 416 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 57, 416) = 1.