Eduardo thinks of a number between 1 and 20 that has exactly 5 factors.what number is he thinking

Sagot :

Answer
16


Explanation
Factors are number that you can multiply to get another number. A number between 1 and 20 that has many factors are 12, 16, 18..
We can find the factors of this numbers and identify the one with five factors.
12→1,2,3,4,6,and 12
16→1,2,4,8,and 16
18→1,2,3,6,9,and 18
We find the 16 has exactly 5 factors.  

The number is [tex]\boxed{16}[/tex] that has exactly five factors in between 1 to 20.

Further explanation:

Factors are the numbers that can be used to find the original number.

Prime numbers are those which have 2 only factors.

The numbers between 1 and 11 doesn’t have more than 3 factors.

The factors of 12 are 1, 2, 3, 4, 6 and 12.

12 have 6 factors.

The factors of 13 are 1 and 13.

13 have 2 factors.

The factors of 14 are 1, 2, 7 and 14.

14 have 4 factors.

The factors of 15 are 1, 3, 5 and 15.

15 have 4 factors.

The factors of 16 are 1, 2, 4, 8 and 16.

16 have 5 factors.

The factors of 17 are 1, and 17.

17 have 2 factors.

The factors of 18 are 1, 2, 3, 6, 9 and 18.

18 have 6 factors.

The factors of 19 are 1 and 19.

19 have 2 factors.

The factors of 20 are 1, 2, 4, 5, 10 and 20.

20 have 6 factors.

The number is [tex]\boxed{16}[/tex] that has exactly five factors in between 1 to 20.

Learn more:

1. Learn more about inverse of the function https://brainly.com/question/1632445.

2. Learn more about equation of circle brainly.com/question/1506955.

3. Learn more about range and domain of the function https://brainly.com/question/3412497

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Comparing quantities

Keywords: Eduardo, number, factors, exactly, one, twenty, thinking, factorization, prime number, prime factorization.