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Class 10MathematicsReal NumbersPrime FactorisationMediumLevel 7

What is the correct prime factorisation of 1155?

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Answer and explanation

Correct answer: (3\times5\times7\times11)

Step 1: Write (1155=11\times105). Step 2: (105=3\times5\times7), so (1155=3\times5\times7\times11). Step 3: Since 105 is composite, break it further.

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prime-factorisationnumber-1155medium

Frequently asked questions

What is the correct answer to this question?

(3\times5\times7\times11)

Why is this the correct answer?

Step 1: Write (1155=11\times105). Step 2: (105=3\times5\times7), so (1155=3\times5\times7\times11). Step 3: Since 105 is composite, break it further.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Prime Factorisation.

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