EASY
10th CBSE
IMPORTANT
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H.C.F. of two or more prime numbers is always .

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Important Questions on Real Numbers

EASY
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 5
LCM of two or more _____ numbers is equal to their product. (composite/prime/irrational/negative)
EASY
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 7
If the product of two coprime numbers is 553, then their LCM = _____
EASY
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 8

The value of x in following factor tree is _____

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EASY
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 9
Sum of a rational and irrational number is never _____ number.
EASY
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 10
The product of any irrational number with a rational number x is always rational. Then, the value of x is _____.
MEDIUM
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 11
If p is a prime number, then p is always an _____
EASY
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 12
The prime factorisation of 320 is 2k×p, where p is a prime number. Then the value of k=_____.
MEDIUM
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 13
Remainder of 16×30×5313 is _____.