The smallest digit to make the number $752_3$ divisible by $3$ is
- ✓$1$
- B$2$
- C$3$
- D$5$
Answer: A.
View full solution →Question types
CH - 5. Factors and Multiples question types
86 questions across 5 question groups — pick any mix to generate a MATH-MAGIC paper with step-by-step answer keys.
86
Questions
5
Question groups
5
Question types
01
M.C.Q.
5 Q→02Answer the following : (1 mark each)
12 Q→03Answer the following : (2 mark each)
55 Q→04Answer the following : (3 mark each)
12 Q→05Fill in the blanks
2 Q→Sample Questions
CH - 5. Factors and Multiples questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Which of the following is a pair of twin primes$?$
- A$(51, 53)$
- B$(35, 37)$
- ✓$(17, 19)$
- D$(9, 11)$
Answer: C.
View full solution →Which of the following is the smallest composite number$?$
- A$1$
- B$2$
- ✓$4$
- D$9$
Answer: C.
View full solution →Which of the following shows prime factorisation of a number$?$
- A$64 = 8 \times 8$
- B$35 = 1 \times 7 \times 5$
- ✓$35 = 7 \times 5$
- D$64 = 2 \times 2 \times 16$
Answer: C.
View full solution →Which of the following is not a multiple of $7?$
- A$7$
- B$63$
- C$105$
- ✓$117$
Answer: D.
View full solution →How many factors does each of the following numbers have:
$7$
View full solution →$7$
How many factors does each of the following numbers have:
$13$
View full solution →$13$
How many factors does each of the following numbers have:
$22$
View full solution →$22$
How many factors does each of the following numbers have:
$39$
View full solution →$39$
How many factors does each of the following numbers have:
$1$
View full solution →$1$
Give an example to show that every non-zero number is a factor of $0.$(Hint: $0 \div 5 = 0,$ but division by $0$ is not defined.)
View full solution →Reva counted $7$ notes of $₹20$ equal to $₹140.$ Are $7$ and $20$ the factors of $140?$ If yes write other factors of $140.$
View full solution →The numbers $17$ and $71$ are prime numbers having the same digits. Find two more such pairs.
View full solution →Build a number that has exactly four different prime factors.
What is the smallest multiple of the greatest $5-$digit number $?$
View full solution →
How will you show that $51$ is a composite number and $19$ is a prime number?
View full solution →List all the prime and composite numbers
$(a)$ between $45$ and $55,$
$(b)$ more than $70$ but less than $90.$
View full solution →$(a)$ between $45$ and $55,$
$(b)$ more than $70$ but less than $90.$
Encircle the numbers which are divisible by $2$ and cross out the numbers which are not divisible by $2.$
$63\ 542\ 90\ 920\ 555\ 44\ 249\ 104\ 800$
View full solution →$63\ 542\ 90\ 920\ 555\ 44\ 249\ 104\ 800$
Even numbers always end in one of the digits ____, ____, ____, ____ or ____.
Odd numbers always end in one of the digits ____, ____, ____, ____ or ____.
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