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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 6

Write all the factors of: 21

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प्रश्न

Write all the factors of: 21

थोडक्यात उत्तर
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उत्तर

All factors of 21 are : 1, 3, 7, 21

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पाठ 8: Playing with Numbers (Including H.C.F. and L.C.M.) - Exercise 9 (B)

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सेलिना Concise Mathematics [English] Class 6 ICSE
पाठ 8 Playing with Numbers (Including H.C.F. and L.C.M.)
Exercise 9 (B) | Q 2.2

संबंधित प्रश्‍न

Write all the factors of: 39


Write all the factors of: 64


Write the first six multiples of: 18


Write the first six multiples of: 16


Without making any actual division, show that the following number is divisible by 8.

240008


Find whether the following number is divisible by 8: 92760


Find whether the following number is divisible by 6: 2010


Find whether the following number is divisible by 5: 66666


Find whether the following number is divisible by 5: 9207


In the following number, replace M by the smallest number to make resulting number divisible by 3: 46M46


State, true or false:

If a number is divisible by 18, it is divisible by 3 and 6


Write the first five multiples of the following number:
65


State if the following number is even or odd.
32


The greatest number which divides 134 and 167 leaving 2 as remainder in each case is


Write the factors of the following number.

5


Write the factors of the following number.

25


Write five three-digit numbers that are multiples of 2.


The factors of a number are 1, 2, 4, 5, 8, 10, 16, 20, 40 and 80. What is the number?


Is 173 a prime? Why?


Write down the first 5 multiples of the given number.

11


If the cat starts from the 5th step and jumps five steps at a time and the mouse starts from the 8th step and jumps four steps at a time, can the mouse get away?


What are the factors of 10?

Can you do this from the chart?


What are the factors of 36?


What is the biggest number for which you can find the factors from this chart? 


In how many ways can you draw a factor tree for 24? Draw three of them below.

   


Write first five multiples of 9.


Match the items in column 1 with the items in column 2.

 

Column 1

 

Column 2

(i)

35

(a)

Multiple of 8

(ii)

15

(b)

Multiple of 7

(iii)

16

(c)

Multiple of 70

(iv)

20

(d)

Factor of 30

(v)

25

(e)

Factor of 50

 

 

(f)

Factor of 20


Write all the factors of the following number.

27


What is a factor of a number?


If 6 is a common factor of two numbers, which could be the pair?


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