Q: What is the smallest number divisible by 20 and 13?

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The smallest number that is divisible by 20 and 15 is 60.

21

20 is.

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No number between 20 and 40 is divisible by all 4 numbers. The smallest number divisible by all 4 of those numbers is: 56

No, both 13 and 100 must be divisible by a common number, since 13 can only be divisible by itself and 1, it is considered a prime number. Ex of using a common number: 20/40 has both 10 and 20 in common, so it can be rewritten as 10/20 or 1/2

No. The smallest number divisible by both 5 and 2 is their lowest common Multiple (LCM) which is 10; ALL multiples of their LCM are divisible by 5 and 2, ie 10, 20, 30, 40, 50, ... are all divisible by 5 and 2.

A prime number is a number that is only divisible by itself, and 1. The largest prime number below 20 is 19. The smallest prime number above 60 is 61. So the answer will be 19 + 61 = 80

20

Yes, if the number is divisible by 20 then it has to be even. Typically if a number is divisible by any number ending in zero (10, 20, 30, etc), the number itself ends in zero as well, which makes it even.

If a number is divisible by both 4 and 5, it's divisible by 20.

0.59 is the smallest. In order from Greatest to Least: 13/20 63% 60% 0.597 0.59

If a number is divisible by 4 and 5, it has to also be divisible by 20.Since 1 in 20 numbers are divisible by 20, the odds are 1/20, or 0.05.

240 is the smallest number with twenty factors.

Yes.

Yes. 1820 is the smallest such number. 1820 = 20*91 1820 = 13*140

if 4 multiplies into that number e.g. 4x4=16 so 16 is divisible by 4, 4x5=20 so 20 is divisible by 4

2 and 20/26 = 10/13

Every number is divisible by any non-zero number. Furthermore, 0 is evenly divisible by 20, so the question is based on a complete misunderstanding of divisibility.

All multiples of 20, which is an infinite number.

23 is the smallest prime number greater than 20.

If a number is divisible by 10 (i.e. 100) then it is also divisible by 5. Ex: 100 by 10, is 10 by 5, is 20 20 by 10 is 2 by 5 is 4 The number of times it is divisible by 5 will always be double the number of times it is divisible by 10, which makes sense because 10 is double 5.

640.

The smallest number into which both 20 and 30 will divide evenly is 60.

The Least Common Multiple of those three numbers is 20 because it is the smallest number that is divisible by 4, 5, and 10.