Real numbers
Grade Class 10
Question:
<p>If the product of two co-prime numbers is 553, then their HCF is:</p>
<p style="display:inline">7</p>
<p style="display:inline">79</p>
<p style="display:inline">553</p>
<p style="display:inline">1</p>
Step-by-Step Solution
Key Concept: The Highest Common Factor (HCF) of any pair of co-prime numbers is always 1 by definition, regardless of their product.
<p>Co prime number are number which have 1 as HCF.</p>
Correct Answer: D