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Two is a Prime number and so it can be represented by 2x1.
21 is a composite number and is represented by 7x3x1.
The greatest number that is common is 1.
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Earn +20 ptsQ: What is the greatest common factor of 5 and 21?
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What is the greatest common factor of 20 21 and 25?
The greatest common factor of 20, 21, and 25 is 1. Although 20 and 25 can be divisible by 5, 21 can not. Therefore, the only common factor between these three numbers is 1 and it's the greatest one as well.
What is the greatest common factor of 10 and 5?
The factors of 5 are: 1, and 5The factors of 10 are: 1, 5, and 10The factors common to 5 and 10 are: 1, and 5The greatest common factor is 5.
What is greatest common factor of 15 25 and 30?
The greatest common factor (GCF) is: 5.
What is the greatest common factor of 120 and 5?
The greatest common factor (GCF) is 5.
What is the greatest common factor of 21 and 5 and 35?
GCF(21, 5, 35) = 1
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