alleryકઈ જોડ જોડિયા અવિભાજ્ય (twin primes) સંખ્યાઓની છે, એટલે કે જે અવિભાજ્ય સંખ્યાઓ વચ્ચે 2 નો તફાવત હોય?
A19 અને 25
B13 અને 15
C11 અને 13
D17 અને 21
Answer & Solution
Correct answer: C. 11 અને 13
11 અને 13 બંને અવિભાજ્ય સંખ્યાઓ છે અને તેમની વચ્ચે 2 નો તફાવત છે, જ્યારે 15, 21 અને 25 વિભાજ્ય સંખ્યાઓ છે.
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