Page 33 - prim 4 كامل

Delta Modern Language Schools

Maths Department
Prim 4 2023-2024

Composite number:- is a whole number greater than 1 and has more

than two factors Ex:- 4 , 6 ,18

Question:

1) Choose the correct answer ::

1) Which of the following numbers is a prime number ?

a) 1 b)11 c)14 d) 50

2) The number.........................ts all factors are 1, 2 , 4, 8 and 16

a) 8 b)12 c)16 d) 32

3) the factors of 27 are ……….

a) 1,3,9 b)1,3,27 c)1,3,9,27 d) 1,3,9,7,27

4) the number 13 has...................factors

a) 1 b) 2 c) 3 d) 4

5) The factor pairs ..................... for the number 35

a) 2 and 17 b) 5 and 4 c) 5 and 7 d) 4 and 7

2) Complete :

1) ……. is the only even prime number.
2) 24 = 1x ……= 2 x ……… = 3 x …………..= 4 x ……………

the all factors are: ………..

3) the number 32 has ......................factors pair.
4) The composite numbers between 1 and 10 are …………..
5) The smallest prime number is ……….
6) The composite numbers between 10 and 20 are ………..
7) The 2-digit prime number which is less than 13 is ………..
8) The number 17 has ………… factors and it is a ……….. number
9) The number 12 has ………… factors and it is a ……….. number
10) The prime number has two different factors which are …… and……

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