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2 results found for "number-21168" in Class 10.
Question
Hard Mathematics
Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8
किस विकल्प में \(2^4\times3^3\times7^2\) का सही मान है?
Which option gives the correct value of \(2^4\times3^3\times7^2\)?
#evaluate-factorisation
#number-21168
#hard
A 21168
B 10584
C 28224
D 14112
Explanation opens after your attempt
Step 1
Concept
Calculate \(2^4=16\), \(3^3=27\), and \(7^2=49\).
Step 2
Why this answer is correct
\(16\times27\times49=21168\).
Step 3
Exam Tip
Solve all three powers separately first. चरण 1: \(2^4=16\), \(3^3=27\) और \(7^2=49\) निकालें। चरण 2: \(16\times27\times49=21168\)। चरण 3: तीनों घातों को पहले अलग-अलग हल करें।
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Question
Hard Mathematics
Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8
संख्या 21168 का सही अभाज्य गुणनखंडन क्या है?
What is the correct prime factorisation of 21168?
#prime-factorisation
#number-21168
#hard
A \(2^4\times3^3\times7^2\)
B \(2^5\times3^2\times7^2\)
C \(16\times1323\)
D \(2^4\times27\times49\)
Explanation opens after your attempt
Correct Answer
A. \(2^4\times3^3\times7^2\)
Step 1
Concept
Write \(21168=16\times1323\).
Step 2
Why this answer is correct
\(1323=3^3\times7^2\), so \(21168=2^4\times3^3\times7^2\).
Step 3
Exam Tip
Convert 1323 into powers of 3 and 7. चरण 1: \(21168=16\times1323\) लिखें। चरण 2: \(1323=3^3\times7^2\), इसलिए \(21168=2^4\times3^3\times7^2\)। चरण 3: 1323 को 3 और 7 की घातों में बदलें।
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