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Fundamental Theorem of Arithmetic

Question 32 T...

Question

Question 32
The sum of the prime factors of 1729 is

(A) 13
(B) 19
(C) 32
(D) 39

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Solution

We have, 1729
Prime factors of 1729

Thus, the prime factors of $1729 = 7 \times 13 \times 19$
$∴$ Sum of the prime factors of 1729 = 7+13+19 = 39

Hence the correct option is D.

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Question 133

Fill in the blank to make the statement true.

32 $\times$ (27 $\times$ 19) = (32 $\times$ ...........) $\times$ 19

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Fundamental Theorem of Arithmetic

Standard X Mathematics

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