"What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?" Is it different from divisible?
What is meant by "evenly divisible"?
21
$\begingroup$
elementary-number-theory
terminology
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0@AndréNicolas Actually, it's English rather than "school". Even means, among other things, equal or fair; so an even division is one where every portion is the same and there is no remainder. – 2018-12-08
6 Answers
20
Evenly divisible means that you have no remainder. So, 20 is evenly divisible by 5 since 20 / 5 = 4. Though, 21 is not evenly divisible by 5 since 21 / 5 = 4 R 1, or 4.2.
13
evenly divisible = divisible .
2
Evenly divisible is same as divisible. So, you are just looking for the L.C.M. of first $20$ natural numbers.
-3
Evenly divisible would mean that the number is divisible by any number completely. To answer your question, the correct answer is 20! (20 factorial).
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4$20!$ is not the smallest such number. For example $19!$ already works, and that too is much bigger than needed. – 2013-01-25
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Means the same as "divisible". Answer is $2\times3\times5\times7\times11\times13\times17\times19$.
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1... which is not divisible by $16$, for example. – 2017-04-05