CBSE Class 4 Maths Multiples And Factors Worksheet

MULTIPLES AND FACTORS

Choose the correct option:-

Question. The product of counting numbers is a ……of the numbers.
a.sum
b.quotient
c.multiple
d.difference

Answer : C

Question…….. is a factor of every number.
a.0
b.1
c.2
d.5

Answer : B

Question.A number that is divisible only by itself and 1 is called a ………number.
a. Even number
b. Prime number
c. Composite number
d.Odd number

Answer : B

Question……is the only even prime number.
a.2
b.4
c.6
d.3

Answer : A

Question. ……. is neither prime nor composite.
a.1
b.2
c.3
d.9

Answer : A

Question. Write all the factors of 45.

Answer : 1,3,5,9,15 and45

Question. Find the prime factors of 300.

Answer : 2×2×3×5×5

Question. Write the prime factorization of 56.

Answer : 2×2×2×7

Question. Find the prime factorization by drawing factor trees.
a.72
b.210

Answer : a.2×2×2×3×3     b.2×3×5×7

Question. Write all the prime numbers between 40 and 60.

Answer : 41,43,47,53,59

Question. Write all the composite numbers between 15 and 25.

Answer : 16,18,20,21,22,24

Question. Write the first two common multiples of 6 and 4.

Answer : 12,24

Question. Which of these are divisible by 3?
a.18, 81,79,175,7380
b.55,555,77,777,88,888

Answer : a.18,81,7380   b. 555,777,888

Question. Write the even numbers between 215 and 230.

Answer : 216,218,220,222,224,226,228

Question. In each of the following pairs , is the first number divisible by the second number?
a.132, 11
b.96,8

Answer : a.yes    b.yes

I. Fill in the blanks :

1. The ____________ factor of a number is the number itself.

2. _______________ is a factor of every number.

3. The smallest factor of a number is _______________.

4. The greatest factor of 15 is _______________.

5. All the factors of a number are _______________ than or _________ to the number.

6. 12 X 8 = 96, 96 is the _________ of 12 and 8.

7. ____ is the only number which has only 1 factor.

8. When a number divides exactly then the divisor is called a _________ of the dividend.

9. When we divide a number by its factors, the remainder will be ________.

10. Every number (other than 1) has at least _________ factors.

11. 9 X 7 = 63, 9 and 7 are the factors of _______________.

12. ___ is a factor of 1.

13. _______________ are the numbers which when multiplied give the product.

14. The smallest natural number is _______________.

15. The smallest whole number is _______________.

16. The first odd number is _______________.

17. The first even number is _______________.

18. The sum of two odd numbers is an _________number.

19. The sum of two even numbers is an ___________ number.

20. A number divisible by only 1 and the number itself is called a __________ number.

21. A number divisible by numbers other than 1 and the number itself is called a _______________ number.

22. A prime number has only two factors ______________ and ___________.

23. The smallest prime number is ______________.

24. The smallest composite number is ______________.

25. _______ is the only even prime number.

26. ______________ is neither prime nor composite.

27. Every prime number except ______________ is odd.

28. Every number is a multiple of ______________ and ______________.

29. Numbers which are not multiples of _____ are called odd numbers.

30. All even numbers are multiples of ______________.

31. The smallest _________ of a number is the number itself.

32. All the multiples of a number are __________ than or __________ to the number.

33. 4 , 8, 12, 16,and 20 are the first five ____________ of 4.

34. Every multiple of 2, other than 2, is a ______________ number.

35. ______________ is an odd composite number having 1 – digit.

36. Every __________ number has only two factors.

37. The fifth multiple of 8 is ______________.

38. 6 is a ______________ of 24.

39. 50 is a ______________ of 5.

40. The third multiple of 9 is ______________.

41. Twin prime numbers are those pair of prime numbers which differ by ______________.

II Do the following :

1. Find the factors of :
a. 25
b. 31
c. 36
d. 48

2. Write the first six multiples of :
a. 9
b. 7
c. 12
d. 15

3. Write down all prime numbers:
a. between 10 and 26
b. between 20 and 50.

4. Write down all even composite numbers.
a. between 11 and 30
b. between 31 and 50.

5. Write down all odd composite numbers :
a. between 15 and 29
b. between 30 and 45.

6. Write down the five pairs of twin prime numbers.

7. Write down all odd numbers between 12 and 40.

8. Write down all even numbers between 35 and 50.

9. Write the greatest prime number which is less than
a. 20
b. 38
c. 50

10. Write the least prime number which is just greater than
a. 6
b. 25
c. 39

11. Write the multiples of 7 which are greater than 15 and less than 45.

12. Write the multiples of 11 which are less than 50.

13. Use the division method to find the prime factors of the following :
a. 35
b. 48
c. 46
D. 24