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Class 10MathematicsReal NumbersFundamental Theorem of ArithmeticEasyLevel 4
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What is the prime factorisation of 210?

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Answer and explanation

Correct answer: (2\times3\times5\times7)

Step 1: Write (210=21\times10). Step 2: (21=3\times7) and (10=2\times5), so (210=2\times3\times5\times7). Step 3: In the final form, all factors must be prime.

Related tags

Prime-FactorisationReal-NumbersMcq

Frequently asked questions

What is the correct answer to this question?

(2\times3\times5\times7)

Why is this the correct answer?

Step 1: Write (210=21\times10). Step 2: (21=3\times7) and (10=2\times5), so (210=2\times3\times5\times7). Step 3: In the final form, all factors must be prime.

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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