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Class 10MathematicsReal NumbersFundamental Theorem of ArithmeticEasyLevel 6
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What is the prime factorisation of 105?

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Answer and explanation

Correct answer: (3\times5\times7)

Step 1: Write (105=15\times7). Step 2: (15=3\times5), so (105=3\times5\times7). Step 3: 15 is composite, so do not keep it in the final prime factorisation.

Related tags

Prime-FactorisationClass-10Easy

Frequently asked questions

What is the correct answer to this question?

(3\times5\times7)

Why is this the correct answer?

Step 1: Write (105=15\times7). Step 2: (15=3\times5), so (105=3\times5\times7). Step 3: 15 is composite, so do not keep it in the final prime factorisation.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Fundamental Theorem of Arithmetic.

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