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FranThe greatest common factor (GCF) of 12, 18, and 21 is the largest number that divides all three numbers without leaving a remainder. To find the GCF, you can first list the factors of each number: 12 (1, 2, 3, 4, 6, 12), 18 (1, 2, 3, 6, 9, 18), and 21 (1, 3, 7, 21). The GCF of 12, 18, and 21 is 3, as it is the largest number that is a factor of all three numbers.
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What is the greatest common factor of 12n and 18?
GCF of 12 and 18 is 6
What is the greatest common factor of 12 18 and 54?
The GCF of 12, 18, and 54 is 6
What is the greatest common factor of 18 and 90?
Since 18 is a factor of 90 and it is the largest factor of itself, the greatest common factor of 18 and 90 is 18.Since 18 is a factor of 90, it is automatically the GCF.
What is the greatest common factor of 12 18 36?
The GCF is 6.
What is the greatest common factor of 12 18 and 42?
The greatest common factor of 12, 18, and 42 is 6The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.
