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Which is the prime factorisation of 20790?
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Answer and explanation
Correct answer: (2\times3^3\times5\times7\times11)
Step 1: Write (20790=54\times385). Step 2: (54=2\times3^3) and (385=5\times7\times11), so (20790=2\times3^3\times5\times7\times11). Step 3: Break both 54 and 385 completely.
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What is the correct answer to this question?
(2\times3^3\times5\times7\times11)
Why is this the correct answer?
Step 1: Write (20790=54\times385). Step 2: (54=2\times3^3) and (385=5\times7\times11), so (20790=2\times3^3\times5\times7\times11). Step 3: Break both 54 and 385 completely.
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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