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What is the correct prime facto... | 3: Prime factorisa...
संख्या 1225 का सही अभाज्य गुणनखंडन क्या है?
What is the correct prime factorisation of 1225?
#prime-factorisation
#square-number
#medium
A \(5^2\times7^2\)
B \(35\times35\)
C \(5\times245\)
D \(7\times175\)
Explanation opens after your attempt
Correct Answer
A. \(5^2\times7^2\)
Step 1
Concept
Recognise \(1225=35^2\).
Step 2
Why this answer is correct
Since \(35=5\times7\), \(1225=5^2\times7^2\).
Step 3
Exam Tip
In a square number, prime exponents may be even. चरण 1: \(1225=35^2\) पहचाना जा सकता है। चरण 2: \(35=5\times7\), इसलिए \(1225=5^2\times7^2\)। चरण 3: वर्ग संख्या में अभाज्य घातें सम मिल सकती हैं।
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