Testul 12 – Divizibilitate

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Question 1 of 10

1. Question
1 points
Câte numere de forma $2 x 1$ au suma cifrelor divizibilă cu 2?
- 9
- 5
- 4
- 2
Correct

Incorrect
Question 2 of 10

2. Question
1 points
[ 20, 150]=
- 3000
- 10
- 300
- 60
Correct

Incorrect
Question 3 of 10

3. Question
1 points
Descompunerea în factori primi a numărului 3960 este:
- $10 \cdot 2^{2} \cdot 3^{2} \cdot 11$
- $2^{3} \cdot 3^{2} \cdot 5 \cdot 11$
- $2^{2} \cdot 3^{2} \cdot 5 \cdot 11$
- $2^{3} \cdot 9 \cdot 5 \cdot 11$
Correct

Incorrect
Question 4 of 10

4. Question
1 points
( 12, 18)=
- 18
- 36
- 6
- 12
Correct

Incorrect
Question 5 of 10

5. Question
1 points
Se dau numerele 2, 3, 4, 5, 7, 23, 31, . „Intrusul” este
- 0
- 7
- 2
- 4
Correct

Incorrect
Question 6 of 10

6. Question
1 points
$1^{1} + 3^{2} + 5^{3}$ $\neq$
- $5^{3} + 1 \cdot 2 \cdot 5$
- ${(1 + 3 + 5)}^{1 + 2 + 3}$
- $5^{1} \cdot 1^{2} \cdot 3^{3}$
- 1
Correct

Incorrect
Question 7 of 10

7. Question
1 points
$1 + 2 + 2^{2} + 2^{3} + \dots 2^{299}$ se divide cu
- 7
- $2^{150}$
- 5
- 2
Correct

Incorrect
Question 8 of 10

8. Question
1 points
$(234, 432) \cdot [234, 432] =$
- $1$
- $432$
- $234$
- $432 \cdot 234$
Correct

Incorrect
Question 9 of 10

9. Question
1 points
Cel mai mare număr de trei cifre distincte, divizibil cu 5 este
- 995
- 999
- 987
- 985
Correct

Incorrect
Question 10 of 10

10. Question
1 points
Se dau numerele 2, 4, 6, 8. 20, 28, 204, 402 . „Intrusul” este
- 402
- 4
- 20
- 2
Correct

Incorrect

Examples of questions from "Testul 12 – Divizibilitate"

$(234, 432) \cdot [234, 432] =$
Cel mai mare număr de trei cifre distincte, divizibil cu 5 este
Câte numere de forma $2 x 1$ au suma cifrelor divizibilă cu 2?

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