How can I solve this probability?

#1
Factory gets supplies delivered every day from the producers. The probabilities of supplies arriving successfully on a given day are 0.97 for the first supplier; 0.87 for the second supplier and 0.75 for the third supplier. The factory requires deliveries from at least one producer to keep up the production work. What is the probability of the factory keeping up the production on a given day?

I need to know how to solve and write down for those solution.

Thank you