Question

find the mean of all the factors of 20
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Answer 1

Answer:

20 is a composite number. 20 = 1 x 20, 2 x 10, or 4 x 5. Factors of 20: 1, 2, 4, 5, 10, 20. Prime factorization: 20 = 2 x 2 x 5, which can also be written 20 = 2² x 5.

Answer 2

Answer:

20 is mean

Step-by-step explanation:

First seven multiples of five = 5, 10, 15, 20, 25, 30 and 35

So we get

$\\ Mean = \dfrac{sum \: of \: numbers} {total \: numbers}$

By substituting the values

Mean = $\dfrac{5 + 10 + 15 + 20 + 25 + 30 + 35)}7$

On further calculation

Mean = $\frac{140}{7}$

By division

Mean = 20

Therefore, the mean of first seven multiples of five is 20.