As far as I know there is no mathematical formula or method to find the number of prime number in a given range. Except by using Computer Programming. So I have performed some research and invent some mathematical formula which will calculate the number of Prime number in the given range of natural number. This mathematical formula I called it Daiohiphi's Prime Formulas. Daiohiphi's Prime Formulas Formula for finding numbers of term of prime number lying between any two given natural number. 1. First Formula for finding the term lying from 0, 1, 2, …, to lt Q = lt – 1 – ... Read More»

## Theorem To Find The Term Of Prime Numbers In Any Given Range

Theorem: To find the term of prime numbers in any given range of natural numbers, i.e. the natural numbers in that given range minus by the composite numbers at that range. Proof: Let the first term of the natural number is 'l' and the last term of the natural number is 'Ɩt'. So the range is 'Ɩ' to 'Ɩt'. Let us consider first term l>2 and last term is Ɩt = 100l Using Daiohiphi's Second Prime Formula Here 99Ɩ + 1 is the total natural numbers and all the term in they are the numbers of term of composite numbers only. Therefore, Q is equal to the ... Read More»