Question

Determine the greatest 5-digit number which is exactly divisible by each of 8, 15 and 21.
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Answer 1

Answer:

The greatest 5 digit number is 99999. When you divide that by 840, you get 119 and a remainder. Find the LCM of 8, 15 and 21. Now multiply the LCM with such a positive integer that you get the biggest 5 digit number (and therefore less than 100000).

Step-by-step explanation:

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Answer 2

5 multiply 7 and the extensor is 9990