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Number Theory
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India
Class VI

HCF and LCM by Inspection

Lesson
Practice

Interactive practice questions

Write down all factors of $225$225.

Separate numbers with a comma.

Easy
2min

Write down all factors of $12$12.

Separate numbers with a comma.

Easy
1min

What number is a factor of every number?

Easy
< 1min

Which of these numbers is $6$6 a factor of?

Easy
< 1min
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Outcomes

6.NS.PN.3

Even/odd and prime/composite numbers, Co-prime numbers, prime factorisation, every number can be written as products of prime factors. HCF and LCM, prime factorization and division method for HCF and LCM, the property LCM × HCF = product of two numbers.

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