Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 4

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6th CBSE

IMPORTANT

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Let $N$ be the greatest number that will divide $1305, 4665$ and $6905$ , leaving the same remainder in each case. Then sum of the digits in $N$ is .

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Important Questions on HCF and LCM

HARD

6th CBSE

IMPORTANT

Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 5

The greatest number of four digits which is divisible by

15, 25, 40

and

75

is _____.

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6th CBSE

IMPORTANT

Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 6

Express the numer as a product of prime factors.

$732$

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6th CBSE

IMPORTANT

Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 6

Express the numer as a product of prime factors.

$725$

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6th CBSE

IMPORTANT

Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 7

Complete the following.
Question Image

Question Image

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6th CBSE

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Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 8

Prove with the help of an example that if

a

is a factor of

b

, then

a

is a factor of any multiple of such as

2 b, 3 b, 4 b,

etc.

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6th CBSE

IMPORTANT

Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 9

Write any three consecutive composite numbers.

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6th CBSE

IMPORTANT

Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 10

What are the two whole numbers that are neither prime nor composite?

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6th CBSE

IMPORTANT

Math Sight>Chapter 3 - HCF and LCM>Revision Exercise>Q 11

What is the sum of the first five prime numbers?