method
int_from_prime_division
v2_6_3 -
Show latest stable
- Class:
Prime
int_from_prime_division(pd)public
Re-composes a prime factorization and returns the product.
Parameters
pd |
Array of pairs of integers. The each internal pair consists of a prime number – a prime factor – and a natural number – an exponent. |
Example
For [[p_1, e_1], [p_2, e_2], ...., [p_n, e_n]], it returns:
p_1**e_1 * p_2**e_2 * .... * p_n**e_n. Prime.int_from_prime_division([[2,2], [3,1]]) #=> 12