Here is a list of five numbers - Edexcel - GCSE Maths - Question 21 - 2020 - Paper 3

To find the lowest common multiple (LCM) of the numbers 98⁵, 98⁶, 98⁷, 98⁸, and 98⁹, we need to consider the highest power of each base that appears in the numbers.

The numbers can be expressed as follows:

• 98⁵ = 98 × 98 × 98 × 98 × 98
• 98⁶ = 98 × 98 × 98 × 98 × 98 × 98
• 98⁷ = 98 × 98 × 98 × 98 × 98 × 98 × 98
• 98⁸ = 98 × 98 × 98 × 98 × 98 × 98 × 98 × 98
• 98⁹ = 98 × 98 × 98 × 98 × 98 × 98 × 98 × 98 × 98

The LCM is determined by taking the highest power among these, which is 98⁹. Therefore, the lowest common multiple of the five numbers is:

$ext{LCM} = 98^9$