The phrase "and therefore the number" is correct and usable in written English.
It can be used to indicate a conclusion or result that follows logically from a previous statement, particularly in mathematical or analytical contexts.
Example: "The total amount of data collected was significant, and therefore the number of participants in the study was increased."
Alternatives: "thus the number" or "hence the number".
The cards, and therefore the number, can be transferred from one phone to another.
Second, e e relaxation times for high energy electrons are shorter and, therefore, the number of such energetic electrons should be smaller.
SA lacks NoV outbreak reporting systems and therefore the number and impact of NoV infections is underestimated.
TS is still at its infancy and therefore the number of cases reported in the literature is limited.
In addition, the time between discharges increases, and therefore the number of discharges possible over the day decreases.
"It would be wrong to reduce volume, as this means reducing the number of students in HE and therefore the number of highly educated people that the country currently needs and will need in the future.
"More people are surviving following a heart attack than ever before and therefore the number of people living with a damaged heart and heart failure is increasing," said Nicholas Mills, a consultant cardiologist at Edinburgh University.
As the Economic Policy Institute points out, we started 2012 with fewer workers employed than in January 2001 — zero growth after 11 years, even as the population, and therefore the number of jobs we needed, grew steadily.
These findings can be used to develop strategies to increase enrollment and, therefore, the number of doctorally prepared faculty who are specifically prepared to excel as nursing faculty.
Since the 1970s China's birth rate, and therefore the number of dependent children, has been plummeting, whereas the number of elderly people has been rising only gradually.
Which is why the number of women who pitch is so small, and, therefore, the number of women who get funding is small.
