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Mathematics
4th
grade
Factors, Prime Numbers, Prime Factorisation
20 questions
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- 1. Multiple ChoicePrime numbers have:Exactly 2 factors2 pairs of factorsMore than 2 factors1 factor
- 2. Multiple ChoiceWhich number is NOT a factor of 10?1235
- 3. Multiple Choice
Which one is a prime number?
15
17
21
39
- 4. Multiple ChoiceWhich of the following numbers shows all of the factors of 12?1,2,3,4,6,121,2,3,4,6,8,121,2,4,6,122,4,6,8,10,12
- 5. Multiple ChoiceWhich list has only prime numbers?2, 3, 4, 51, 5, 7, 92, 3, 5, 72, 4, 6, 8
- 6. Multiple Choicewhich number below is NOT prime?7923
- 7. Multiple ChoiceI am a prime number between 30 and 40. Which number could I be?31333639
- 8. Multiple Choice
What are all of the factors of 15?
1,3,5,15
5,15
1,15
1,5
- 9. Multiple Choice
What are the factors of 19?
1
19
1,19
0
- 10. Multiple Choice
Which is a factor pair of 22?
1 x 11
2 x 11
21 x 1
22 x 3
- 11. Multiple Choice
If 5 a factor of 27?
yes
no
- 12. Multiple Choice
Find all of the factor pairs of 24.
1 x 24 ; 2 x 12
1 x 24 ; 2 x 12 ; 3 x 8
1 x 24 ; 4 x 6
1 x 24 ; 2 x 12 ; 3 x 8 ; 4 x 6
- 13. Multiple Choice
Which factor of 12 is missing in the list of numbers? 1,2,3,4,___,12.
5
6
8
10
- 14. Multiple ChoiceWhat are the factors of 14?1,141, 2, 7, 142, 71, 14
- 15. Multiple ChoiceThe factor pairs of 15 are 1 and 15 and _______2 and 73 and 63 and 53 and 4
- 16. Multiple Choice
What is the only prime number that is even? (even = angka genap)
14
22
17
2
- 17. Multiple Choice2 x 2 x 2 is the prime factorization of...612228
- 18. Multiple Choice
Find the prime factorization of 12 ?
2 x 6
2 + 2 + 2 + 2 + 2 + 2
22 x 3
1 x 22 x 3
- 19. Multiple Choice
Find the prime factorization of 16 ?
1 x 16
22x 4
24
22 + 22
- 20. Multiple Choice
Which of the following shows the prime factorization of 50?
2 x 5 x 5
2 x 2 x 5
2 x 5 x 5 x 5
2 x 2 x 2 x 5
- Answer choicesTagsAnswer choicesTags