Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. what number is he thinking of?
Are you counting 1 as a factor ?
12 has a lot of factors, let's look at it
12 has factors 1,2,3,4, 6, and 12 , six of them
none other comes close.
I would say 12 if we exclude 1 as a factor.
15
I think it is 12 because like he/she said is true.
I think 16.
15
I think its 16
16 = 1, 2,4,8 and 16
To find the number Eduardo is thinking of, we need to identify a number between 1 and 20 that has exactly 5 factors. Let's go through the process step by step:
1. First, we need to identify the numbers between 1 and 20.
2. Then, we need to calculate the factors for each number.
3. Finally, we find the number that has exactly 5 factors.
Let's start with step one:
1. The numbers between 1 and 20 are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20.
Now, let's move on to step two and calculate the factors for each number:
1. For the number 1, the factors are 1: (1)
2. For the number 2, the factors are 1 and 2: (1, 2)
3. For the number 3, the factors are 1 and 3: (1, 3)
4. For the number 4, the factors are 1, 2, and 4: (1, 2, 4)
5. For the number 5, the factors are 1 and 5: (1, 5)
6. For the number 6, the factors are 1, 2, 3, and 6: (1, 2, 3, 6)
7. For the number 7, the factors are 1 and 7: (1, 7)
8. For the number 8, the factors are 1, 2, 4, and 8: (1, 2, 4, 8)
9. For the number 9, the factors are 1, 3, and 9: (1, 3, 9)
10. For the number 10, the factors are 1, 2, 5, and 10: (1, 2, 5, 10)
11. For the number 11, the factors are 1 and 11: (1, 11)
12. For the number 12, the factors are 1, 2, 3, 4, 6, and 12: (1, 2, 3, 4, 6, 12)
13. For the number 13, the factors are 1 and 13: (1, 13)
14. For the number 14, the factors are 1, 2, 7, and 14: (1, 2, 7, 14)
15. For the number 15, the factors are 1, 3, 5, and 15: (1, 3, 5, 15)
16. For the number 16, the factors are 1, 2, 4, 8, and 16: (1, 2, 4, 8, 16)
17. For the number 17, the factors are 1 and 17: (1, 17)
18. For the number 18, the factors are 1, 2, 3, 6, 9, and 18: (1, 2, 3, 6, 9, 18)
19. For the number 19, the factors are 1 and 19: (1, 19)
20. For the number 20, the factors are 1, 2, 4, 5, 10, and 20: (1, 2, 4, 5, 10, 20)
Now, let's move on to the final step and find the number that has exactly 5 factors:
From the list, we can see that the number 16 has exactly 5 factors: (1, 2, 4, 8, 16).
Therefore, Eduardo is thinking of the number 16.