May 13, 2014 · 1 If a number ends with n n zeros than it is divisible by 10n 10 n, that is 2n5n 2 n 5 n. A factorial clearly has more 2 2 s than 5 5 s in its factorization so you only need to count …

Oct 31, 2017 · It means "26 million thousands". Essentially just take all those values and multiply them by 1000 1000. So roughly $26 $ 26 billion in sales.

Aug 11, 2017 · Question: Find the number of times 5 5 will be written while listing integers from 1 1 to 1000 1000. Now, it can be solved in this fashion. The numbers will be of the form: 5xy, …

Oct 10, 2019 · Often in calculating probabilities, it is sometimes easier to calculate the probability of the 'opposite', the technical term being the complement. Because if something happens with …

How many ways are there to write $1000$ as a sum of powers of $2,$ ($2^0$ counts), where each power of two can be used a maximum of $3$ times. Furthermore, $1+2+4+4$ is the …

What is the proof that there are 2 numbers in this sequence that differ by a multiple of 12345678987654321?

Your computation of N = 10 N = 10 is correct and 100 100 is the number of ordered triples that have product 1000 1000. You have failed to account for the condition that a ≤ b ≤ c a ≤ b ≤ c.

Think of all the numbers between 1000 and 100,000 as five digit numbers (i.e 1000 is actually 01000). How many numbers five digit numbers are there, well the short answer is 100,000 and …

Jan 30, 2017 · For example, the sum of all numbers less than 1000 1000 is about 500, 000 500, 000. So, 168 1000 × 500, 000 168 1000 × 500, 000 or 84, 000 84, 000 should be in the right …

There are different categories of numbers that we use every day. Integers that written in decimal notation have $1, 2$ or $5$ as the leading figure, followed by none, one or more zeros. These …