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6th ICSE
IMPORTANT
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What is the L.C.M of 9 and 18?

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Important Questions on Playing With Numbers

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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Mental Maths>Q 8
Find the L.C.M of 5 and 7.
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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Mental Maths>Q 9
What is the H.C.F of 5, 10 and 15?
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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Mental Maths>Q 10
What is the H.C.F of 8, 12 and 20?
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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Mental Maths>Q 11
Find the least multiple of 5 which is divisible by both 2 and 3?
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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Mental Maths>Q 12
Which of the following are the prime numbers?
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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Mental Maths>Q 13
Write down the numbers between 10 and 20 which have exactly 2 factors.
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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Mental Maths>Q 14
Find the sum of all the prime numbers between 1 and 10.
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6th ICSE
IMPORTANT
ICSE NumbersWiz 6>Chapter 7 - Playing With Numbers>Chapter Assessment>Q 1

Fill in the blanks.

Numbers with only two factors, one and itself are called _____ numbers.