Why is 72 the best number

How this special number 73 was discovered? Conclusion 9. About Cuemath External References. For Example: 2, 3, 5, 7 and 11 are the first few prime numbers. History of prime number? The next important developments were made by Fermat at the beginning of the 17th Century. Some of the properties of prime numbers are: Every number greater than 1 can be divided by at least one prime number.

Every even positive integer greater than 2 can be expressed as the sum of two primes. Except 2, all other prime numbers are odd. In other words, we can say that 2 is the only even prime number. Two prime numbers are always coprime to each other. As a consequence, 73 is only a multiple of 1 and Parity of 73 73 is an odd number because it is not evenly divisible by 2. Conclusion Been amazed by knowing the logic behind the special number 73 math is magical in many ways.

You can know more about prime numbers. What are prime numbers, and why are they so vital to modern life? About Cuemath Cuemath, a student-friendly mathematics platform, conducts regular Online Live Classes for academics and skill-development and their Mental Math App, on both iOS and Android , is a one-stop solution for kids to develop multiple skills. What numbers can 73 be divided by? Why are they called "prime" numbers?

External links To know more about the special number you can visit the below link: why 73 is best number More about 73 best number. A Tale of two Salons. Read the blog to know about the tale of two Salons. And if you too believe that 73 is "the Chuck Norris of numbers," you can get your own Sheldon-approved "73" shirt from the show. Product Reviews. Home Ideas. United States. Type keyword s to search.

Today's Top Stories. The Rise of the Cleanfluencer. You know the joke from The Hitchhikers Guide to the Galaxy in which the answer to the ultimate question about life, the universe and everything is 42? It was a typo. Should have been The author, Douglas Adams, was secretly an economist and statistician who pretended to be a sci-fi writer of comic brilliance to hide his shame.

So, Why 72? The rule of 72 is derived, approximately, from times the natural logarithm of 2. But you don't have to worry about where it comes from, only that it works reasonably well. The rule of 72 helps clarify half the serious economic issues of the day. Compared with a famous joke, this is a dull practicality.

But boy it's one really useful dull practicality. The rule of 72 helps reveal the full effects of change. What it particularly shows is how repeated small changes can blow up.

For example, we're worried at the moment about inflation. Easy - take 72 and divide it by six. Another example. We're also worried about economic growth or growth we're missing while we struggle to rouse ourselves after recession. How long before economic growth of say 2.