Multiples

Q. Two bulbs are turned on at the same time. One blinks every 4 seconds and other blinks every 6 seconds. In sixty seconds how many times will they blink at the same time?

1. 4
2. 5
3. 3
4. 6

Q. Find the missing number.

9, 18, 27, 36, 45, ___, 63, 72

1. 52
2. 54
3. 57
4. 53

Q.

The number of multiples of a given number is finite. True or false? Why?

1. True
2. False

Q. The sum of all the factors of 56 is (i) 124. (ii) 120. (iii) 112. (iV)132

Q. Which of the following is a not a multiple of 11?

1. 121
2. 22
3. 56
4. 110

Q. The multiple of an even number is always a /an ___ number.

1. Prime

2. Even

3. Composite

4. Odd

Q. The largest two digit multiple of 5 is ____.

1. 105
2. 50
3. 95
4. 99

Q. Naira goes to music class once every 6 days, to karate class once every 12 days and to art class once every 18 days. If she attended all the three classes on 1st April then, on which nearest date will she attend all the three classes again?

1. 4th May
2. 5th May
3. 6th May
4. 7th May

Q. What is the sum of the first three multiples of 7?

1. 44
2. 42
3. 38
4. 40

Q. What are the first three multiples of 8?

1. 8, 12 and 16
2. 8, 16 and 32
3. 8, 16 and 24
4. 8, 24 and 32

Q. Which of the following is a multiple of 7?

1. 21
2. 31
3. 33
4. 12

Q. 1 is a factor of ___ natural number.

1. odd
2. even
3. composite
4. every

Q. Find the factors of 28 using Factor tree.

Q. Which is the smallest number divisible by both 9 and 12

1. 24
2. 27
3. 36
4. 72

Q.

Write the even multiples of $13$, less than $100$.

Q. Write the multiples of 8 which lie between 50 and 80?

Q. Tania has a collection of 307 marbles. She wants to put them in jars. If she can put 12 marbles in one jar, how many jars are required to put all the marbles?

1. 26
2. 25
3. 30
4. 20

Q.

All prime numbers except $2$ are even numbers

1. True
2. False

Q.

Every multiple of a number leaves a remainder of ____ when divided by the number.

1. 1
2. 0

Q.

The smallest odd composite number is

Q. Which of the following numbers is a palindrome?

1. 12456
2. 56985
3. 98689
4. 12111

Q. Which number completes the table correctly?
14, 21, 28, 35, 42, ?

1. 45
2. 49
3. 55
4. 65

Q. Which is the smallest common factor of all numbers?

1. 0
2. 1
3. 2
4. None of these

Q. The largest one digit multiple of 2 is .

1. 6
2. 8
3. 10

Q. What is the 8th multiple of 4?

1. 8
2. 16
3. 32
4. 40

Q. Which of the following is a common multiple of 16 and 24

1. 84
2. 52
3. 96
4. 32

Q. Choose the option that lists all factors of 72.

1. 1, 2, 3, 4, 6, 7 and 9
2. 7, 8, 9 and 72
3. 2, 3, 4, 6, 12, 24 and 36
4. 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72

Q.

Find first five multiples of: $43$.

Q. Every odd number is of the form _____.

1. 2n - 1, where n is rational number.
2. 2n + 1, where n is natural number.
3. 2n + 1, where n is rational number.
4. 2n - 1, where n is natural number.

Q. The sum of a number and its smallest multiple is:

1. equal to the number
2. 1
3. one greater than the number
4. twice the number