Given below is a number puzzle. Solve it using a given number clues: Clues: Across Down a . The LCM of 12 and 18 a . A 2 - digit prime number between 30 and 35 . b . The HCF of 56 and 70 . b . The LCM of 45 and 60 . c . A multiple of 29 . c . A 3 - digit multiple of 67 d . The sum of the smallest composite number and the largest 2 - digit number. d . The product of the smallest 2 - digit prime number with itself. e . Largest factor of 18 e . The HCF of 48 and 60

Given number puzzle: Considering the numbers for Across first, we get a . We know, the LCM of 12 and 18 is 36 . So, the required number is 36 . b . The HCF of 56 and 70 is 14 . So, the required number is 14 . c . A multiple of 29 . So, the required number is 58 . d . The sum of the smallest composite number and the largest 2 - digit number is 4 + 99 = 103 . The required number is 103 . e . Largest factor of 18 is 18 . Now, we find the numbers in Down : a . A 2 - digit prime number between 30 and 35 is 31 . b . The LCM of 45 and 60 is 180 . c . A 3 - digit multiple of 67 is 536 .So, the required number is 536 . d . The smallest 2 - digit number is 11 . So, the product is 11 × 11 = 121 e . The HCF of 48 and 60 is 12 . So, the required number is 12 . So, finally the number puzzle looks like:

E M B I B E

Maths Express>Chapter 4 - HCF and LCM>Multilple choice questions>Q 4

EASY

6th CBSE

IMPORTANT

Earn 100

The LCM of two prime numbers is their _____.

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Important Questions on HCF and LCM

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6th CBSE

IMPORTANT

Maths Express>Chapter 4 - HCF and LCM>Multilple choice questions>Q 5

The greatest number which can divide

16, 20

and

24

is _____.

EASY

6th CBSE

IMPORTANT

Maths Express>Chapter 4 - HCF and LCM>Multilple choice questions>Q 6

The smallest number that is divisible by

8, 10

and

12

is _____.

MEDIUM

6th CBSE

IMPORTANT

Maths Express>Chapter 4 - HCF and LCM>Multilple choice questions>Q 7

The HCF of two consecutive odd numbers is _____.

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6th CBSE

IMPORTANT

Maths Express>Chapter 4 - HCF and LCM>Multilple choice questions>Q 8

The HCF of two consecutive even numbers is _____.

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6th CBSE

IMPORTANT

Maths Express>Chapter 4 - HCF and LCM>Multilple choice questions>Q 9

The LCM of

18

and

40

are _____.

MEDIUM

6th CBSE

IMPORTANT

Maths Express>Chapter 4 - HCF and LCM>Multilple choice questions>Q 10

The LCM of

54

and

216

is _____.

HARD

6th CBSE

IMPORTANT

Maths Express>Chapter 4 - HCF and LCM>WORKSHEET

Given below is a number puzzle. Solve it using a given number clues:

Question Image

Clues:

Across	Down
$a .$ The LCM of $12$ and $18$	$a .$ A $2 -$ digit prime number between $30$ and $35$ .
$b .$ The HCF of $56$ and $70$ .	$b .$ The LCM of $45$ and $60$ .
$c .$ A multiple of $29$ .	$c .$ A $3 -$ digit multiple of $67$
$d .$ The sum of the smallest composite number and the largest $2 -$ digit number.	$d .$ The product of the smallest $2 -$ digit prime number with itself.
$e .$ Largest factor of $18$	$e .$ The HCF of $48$ and $60$

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