Difference between revisions of "2023 IOQM/Problem 9"
(Created page with "==Problem== Find the number of triples <math>(a, b, c)</math> of positive integers such that (a) <math>ab</math> is a prime; (b) <math>bc</math> is a product of two primes; (...") |
(No difference)
|
Revision as of 08:04, 20 October 2023
Problem
Find the number of triples 
of positive integers such that
(a) 
is a prime;
(b) 
is a product of two primes;
(c) 
is not divisible by square of any prime and
(d) $abc ≤ 30$ (Error compiling LaTeX. Unknown error_msg)
