Elisa think about a number between 10 and 20 that has exactly 2 factor. What number did she is thinking?
I think 13
Do you know the definitions of factors? Factors are amount of different the numbers that can go into a number. Like let's take 27.
3*9=27
There is no more factors of 27. (a factor is not 1*27 or 1 times any number.)
A prime number (like 13) cannot have ANY factors because no even numbers go into it.
Please understand this and take this into consideration for your response
To find the number Elisa is thinking of, we need to identify a number between 10 and 20 that has exactly 2 factors.
Factors are numbers that divide evenly into another number. Any number greater than 1 and less than the number itself is considered a factor. For example, the factors of 8 are 1, 2, 4, and 8.
Given that we are looking for a number with exactly 2 factors, we need to find a prime number. Prime numbers are numbers that are only divisible by 1 and themselves.
By checking the prime numbers between 10 and 20, we find that there is only one number that meets the criteria: 11.
Thus, Elisa is thinking of the number 11.