
Primtal och delbarhet
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Svetlana Yushmanova
FREE Resource
Enhance your content in a minute
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Vilka är primtal?
1
2
3
4
5
Answer explanation
1 är INTE ett primtal för att annars skulle det gå att primtalsfaktorisera samma tal på olika sätt men det kan man inte.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hur många jämna primtal finns det?
inga
bara ett
oändligt många
Answer explanation
2 är det enda jämna primtalet
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Vilka av talen nedan är delbara med 3?
12342
913
– 129
111 111 111
0
Answer explanation
Siffersumma ska vara delbar med 3
0 är delbar med 3 som med alla andra tal (utom noll naturligtvis)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Om k är ett heltal då kan man definitivt säga att talet 2k+1 är
jämnt
udda
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Vilka är faktoriseringar av talet 12?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vilket är primtalsfaktorisering av talet 12?
Answer explanation
faktorisera = skriva som en produkt, alltså med gånger
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Vilka delare finns i talet 8?
8
1
2
4
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