The phrase "a large number of foreign" is correct and usable in written English.
For example, you can use it in a sentence like this: "A large number of foreign students attended the college fair."
They would react violently if they saw a large number of foreign troops".
He earned a living as a public speaker and consultant for a large number of foreign governments, corporations and organisations.
The Philippine government was aided by United Nations agencies, international relief organizations, and a large number of foreign countries.
Hebrew University includes a large number of foreign students, and it also is one of the few places in Israel where Jews and Arabs mix freely.
Almost simultaneously, the chairman of Russia's security council said at a news conference here that a large number of "foreign" objects had been found in the wreckage.
A large number of foreign migrant workers mostly from sub-Saharan African countries participate in the Libyan economy, particularly in agriculture and industry.
The Ministry of Justice said the deal was the first bilateral agreement signed with a country that had a large number of foreign-national offenders in British jails.
While you can sometimes break these stats down by region (in YouTube you still can't – resulting in a large number of foreign-language (well, foreign to English speakers) now dominating the main content pages), more often than not you are looking at content that generally doesn't match what each individual may be interested in.
Among the reforms that former science minister Daniel Funeriu passed under the previous, Democratic Liberal Party government was the recruitment of a large number of foreign-based Romanian scientists to sit on CNATDCU for the validation of doctoral theses and scientific titles.
As for immigration reform, if hardliners in Congress have their way, it will be harder for foreign-born workers to enter, live and work in the U.S. Restaurateurs lean on a large number of foreign-born workers both in-house and indirectly via their suppliers in agriculture.
In the first place a larger number of foreign tourists were present.
