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Question:

[49]. विषम संख्या ज्ञात करें (Classification): / Find the odd number out:

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Correct Answer:

सभी संख्याएँ पूर्ण घन (Perfect Cubes) हैं:

, , , ।

यहाँ 7, 11, और 13 अभाज्य (Prime) संख्याएँ हैं, जबकि 15 एक भाज्य (Composite) संख्या है। अतः 3375 विषम है। / All are perfect cubes. However, 7, 11, and 13 are prime numbers, whereas 15 is a composite number. Hence is the odd one.

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