कौन सा युग्म जुड़वां अभाज्य (twin primes, 2 के अंतर वाली अभाज्य संख्याएं) का है?
A19 और 25
B13 और 15
C11 और 13
D17 और 21
Answer & Solution
Correct answer: C. 11 और 13
11 और 13 दोनों अभाज्य संख्याएं हैं और उनके बीच का अंतर 2 है। अतः यह जुड़वां अभाज्य युग्म है।
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