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What is the least rationalizing factor of $150$ ?

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12

50

50

2

answer is D.

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Detailed Solution

Given,

150

.
To rationalize the denominator of

1 a + b

multiply this by

a − b a − b

where

a − b

is the rationalizing factor

a

and b are integers.

150 = 1 5 × 5 × 2 = 152

The lowest rationalizing factor of

150 is 2

.
Hence, the correct option is 4.

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