Question

6,15,35,77,143,221,323,_​

Answer 1

https://m4maths.com/previous-puzzles-2003-What-is-the-9th-term-of-below-series-6-15-35-77-143.html

What is the 9th term of below series? 6, 15, 35, 77, 143 - M4maths

Answer 2

Answer:

437

Step-by-step explanation:

1. the given series First prime nunber multiply by second prime number..alternatively.

• so 2*3=6
• 3*5 =15
• 5*7=35
• 7*11=77
• 11*13=143
• 13*17=221
• 17*19=323
• .......then last 19*23=437 ans..