(C) To find the $LCM$ of $40, 60,$ and $80$,we first find the prime factorization of each number:$40 = 2^3 \times 5^1$$60 = 2^2 \times 3^1 \times 5^1$

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(C) To find the $LCM$ of $40, 60,$ and $80$,we first find the prime factorization of each number:$40 = 2^3 \times 5^1$$60 = 2^2 \times 3^1 \times 5^1$$80 = 2^4 \times 5^1$The $LCM$ is the product of the highest power of each prime factor present in the numbers:$LCM = 2^4 \times 3^1 \times 5^1$$LCM = 16 \times 3 \times 5$$LCM = 16 \times 15 = 240$

Class 10 Mathematics Real Numbers HCF and LCM by Prime Factorisation

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$LCM(40, 60, 80) = \dots$

A
$120$
B
$180$
C
$240$
D
$480$

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Real Numbers

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HCF and LCM by Prime Factorisation

Find the $\text{g.c.d.}$ and $\text{l.c.m.}$ of $8$,$9$,and $25$ using the fundamental theorem of arithmetic.

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The Least Common Multiple $(LCM)$ of the smallest prime number and the smallest composite number is . . . . . . .

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Find the $\text{l.c.m.}$ and $\text{g.c.d.}$ of the following by using the fundamental theorem of arithmetic: $96$ and $404$.

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Find the $HCF$ of $96$ and $404$ by the prime factorization method,and hence find their $LCM$.

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If the greatest common divisor (g.c.d.) of $a$ and $b$ is $d$,then which of the following statements is false?

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$LCM(40, 60, 80) = \dots$

Similar Questions

Find the $\text{g.c.d.}$ and $\text{l.c.m.}$ of $8$,$9$,and $25$ using the fundamental theorem of arithmetic.

The Least Common Multiple $(LCM)$ of the smallest prime number and the smallest composite number is . . . . . . .

Find the $\text{l.c.m.}$ and $\text{g.c.d.}$ of the following by using the fundamental theorem of arithmetic: $96$ and $404$.

Find the $HCF$ of $96$ and $404$ by the prime factorization method,and hence find their $LCM$.

If the greatest common divisor (g.c.d.) of $a$ and $b$ is $d$,then which of the following statements is false?

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