There are 8181 of them and I am sure that most of us on WA have
better things to do than to type them out for you.
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Well, there are 8,180 of them. Unfortunately, we're unable at the moment
to list all of them here, as we have several more questions to answer and
a limited time in which to complete that task.
But you can generate them relatively easily on your own, as follows:
-- Take a large sheet of paper, several pencils, and a calculator if you must.
-- At the top of the paper, write the number "10,010". That's the smallest multiple of 11
that has five digits.
-- Add 11 to that number, and write "10,021" under it.
-- Continue in that fashion, adding 11 to the last number on the list, and writing
the new number below it.
-- Stop when you reach "99,990". That's the largest multiple of 11 that has five digits.
In order to make sure that you have them all, count the numbers on the paper.
There should be 8,180 of them. If fewer, then you've missed one or more, and
you should repeat the process using a new sheet of paper.
Good luck. You can do it!
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The main generalization you can make about all multiples of 5 would be that they will either end in the digit 0 or 5. So 5, 487975, 100, and so on all are multiples of 5. I don't believe there are any other generalizations that can be made about it.
-5
95, is the two digits after the last digit of the multiple of 5's.
There are 720 of them.
-3
NO. All multiples of 5 have a final digit of 0 or 5. Therefore 1001 with its final digit of 1 is NOT a multiple of 5.
There are 2000 4-digit numbers that are multiples of 5, so, instead of listing them all, it is equally valid to say: Any4-digit number whose final digit is either a 5 or a 0 is a multiple of 5. Get Right? :P
The main generalization you can make about all multiples of 5 would be that they will either end in the digit 0 or 5. So 5, 487975, 100, and so on all are multiples of 5. I don't believe there are any other generalizations that can be made about it.
The only multiples of 11 are 1 and itself, so it is a prime number. This is the answer to the question "what are the factors of 11". Multiples of 11 can be determined as follows. Find the sum, mod 11 of the alternate digits in the number. The difference will be zero. Examples: - 1,529. 1+2 = 3 [the thousands digit plus the tens digit], 5+9 = 14 which is 3(mod 11) [the hundreds digit plus the units digit]. Difference between the two sums is zero, therefore 1,529 is a multiple of 11 . 12,345. 1+3+5 = 9, 2+4 = 6. difference is 3, therefore 12,345 is not a multiple of 11.
70 and 75
Multiples of 30 from 120 to 990
lcm(2, 3, 5) = 30 → 2 digit common multiples are 30, 60, 90.
To determine the number of 3-digit numbers that are multiples of 5, we need to find the first and last 3-digit multiples of 5. The first 3-digit multiple of 5 is 100, and the last 3-digit multiple of 5 is 995. To find the total number of such multiples, we can use the formula (Last - First) / 5 + 1 = (995 - 100) / 5 + 1 = 180. Therefore, there are 180 3-digit numbers that are multiples of 5.
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-5
2250