goldendragon1971

Saturday, February 4, 2017

Clues into both numbers and processes..................the connection between diff. parts of math for one............the primes in the 1st 10 numbers..................there are four of them.................25%.........the same as 1/4.............................the primes between 10 and 20 also provide clues..........to me anyways..............

11, 13, 17, 19.....................................besides single digits............................no prime can ever be even................................................just using 2 as a sieve................u eliminate 1/2 the entire number line from being prime...........................and if u use 5............................the middle of any ten number sequence..........starting and ending with multiples of 10...........the center digit cannot be prime......................

So, just using 2 and 5 as a sieve.....................u only leave 40% of the entire number line to be prime, max............on the positive side.................................a prime can ONLY end in a 1, a 3, a 7 or a 9........above 10.....................................there are exactly 4 primes between 10 and 20.......clues........from nature........

When a number has more than two factors it is called a composite number. Here are the first few prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, etc.

Math Forum: Ask Dr. Math FAQ: Prime Numbers

mathforum.org/dr.math/faq/faq.prime.num.html

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Math Forum: Ask Dr. Math FAQ: Prime Numbers

mathforum.org/dr.math/faq/faq.prime.num.html

When a number has more than two factors it is called a composite number. Here are the first few prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, etc.

Prime number - Wikipedia

https://en.wikipedia.org/wiki/Prime_number

A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number.

‎List of prime numbers · ‎Composite · ‎Fundamental theorem · ‎AKS primality test