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Subjects
Class 10MathematicsReal NumbersFundamental Theorem of ArithmeticMediumLevel 5
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If the HCF of two numbers is 21 and their LCM is 420, what is their product?

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Answer and explanation

Correct answer: 8820

Step 1: For two numbers, product (=) HCF (\times) LCM. Step 2: (21\times420=8820). Step 3: Use the HCF-LCM relation in the correct situation.

Related tags

Hcf-Lcm-RelationMediumExam-Practice

Frequently asked questions

What is the correct answer to this question?

8820

Why is this the correct answer?

Step 1: For two numbers, product (=) HCF (\times) LCM. Step 2: (21\times420=8820). Step 3: Use the HCF-LCM relation in the correct situation.

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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