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6th ICSE
IMPORTANT
Earn 100

Which of the following have no common factor? Can we call them Co-prime?

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Important Questions on Playing with Numbers

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6th ICSE
IMPORTANT
A number is divisible by both 5 and 12. By which other numbers will that number be always divisible?
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6th ICSE
IMPORTANT
A number is divisible by 18. By which other numbers will that number be divisible?
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6th ICSE
IMPORTANT
I am a common multiple of 3, 5 and 6. I am less than 60. Which number am I?
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6th ICSE
IMPORTANT
Write any 5 pairs of co-prime numbers.
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6th ICSE
IMPORTANT
Write numbers less than 50 which are common multiples of 8 and 12.
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6th ICSE
IMPORTANT

Find the prime factorisation of the following number.

60

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6th ICSE
IMPORTANT

Find the prime factorisation of the following number.

27

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6th ICSE
IMPORTANT

Find the prime factorisation of the following number.

80