The phrase "a very significant number" is correct and usable in written English.
It can be used when emphasizing the importance or magnitude of a quantity in a specific context.
Example: "In the recent survey, a very significant number of participants expressed their dissatisfaction with the service."
Alternatives: "a considerable number" or "a substantial number".
War would almost certainly mean desperate hardship and death for a very significant number of people.
The bank records provide a rare glimpse into the economic fortunes of a very significant number of the Lansdowne immigrants.
Mahfouda says that his company is founded on the assumption that "a very significant number" of taxi rides are shareable.
"We have reached a point where a very significant number of Londoners have effectively been priced out of their home city.
We do a very significant number of these operations all over the country and it should not be taken as a given that this figure should automatically increase.
"That is a lot, it is a very significant number," said Filiz Bikmen, the executive director of Tusev, a philanthropy foundation in Istanbul.
But at the same time when the symptom has a very human face to it and has a, very significant numbers attached to it, it seems both short-sighted and pretty irresponsible to only look at treating the cause and not the symptom, you need a good balance of both".
"We had a long and very significant number of firings close in the last two weeks," said Captain Ronan Corcoran, spokesman for the UN Truce Supervision Organisation, which oversees the unarmed observer force in Lebanon, the Golan Heights and Egypt.
That's a small but growing and very significant number compared to the 150 million plus seats sold by Microsoft Exchange.
Those are very significant numbers for a bot, since bots can be hard to find and start using, and the idea of communicating with a company via Facebook Messenger is still very new outside of the WeChat empire in China.
Our mix generates very significant numbers of jobs nationwide, in manufacturing, engineering, planning, management, installation, servicing and retail, which a few nuclear reactors cannot.
