Question

find the least three digit number which exactly divisible by 15,20 and 30

Answer 1

Answer:

You are looking for the least common multiple of 15, 20, and 30. Perform prime factorization and include the minimum number of each prime from these numbers and multiply them together. You then have the lcm:

15 = 3 * 5

20 = 2 * 2 * 5

30 = 2 * 3 * 5

two 2’s by one 3 by one 5 = 2 * 2 * 3 * 5 = 60 That is the answer.

Step-by-step explanation:

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