The phrase "a close number" is correct and usable in written English.
It can be used when referring to a numerical value that is near to another value or estimate.
Example: "The final score was a close number to what we had predicted, making the game even more exciting."
Alternatives: "a near value" or "a similar figure".
A visit to the camp barber was the first necessity for the recruits, where a close "number one" cut was the only style on offer.
With the joint venture in place, Nokia will now become a close number two competitor to Ericsson, which has a thriving wireless networking business.
The nightingale might be most famous for its bewitching song, but the bird's droppings are coming in at a close number two as spas across the world are opting to use the strange ingredient in skin treatments.
If a contig of a certain gene is overlapping with a certain number of reads, there is a high probability that the contig of its ortholog from the other species is overlapping with a close number of reads.
Altogether, 1946 cases (70%) and 23 171 controls (77%) were located by their exact number in the street (best geocoded addresses, uncertainty of 20 m), whereas 303 cases (11%) and 2459 controls (8.6%) were located by a segment of a short street or by a close number (uncertainty of 50 100 m).
The host was Neil Patrick Harris, who came out to sing a closing number about everything that had happened during the broadcast.
They wrote Positive Thinking as a closing number for the Morecambe & Wise Show and the theme tune to Mr & Mrs, before embarking on a musical version of the Arnold Bennett novel The Card.
Merrie Cherry asked me to perform on cello as a closing number, so I was excited about that.
Townshend wrote the song as a closing number of the Lifehouse project, and the lyrics criticise revolution and power.
"Together Again" was again performed as a closing number on her Number Ones: Up Close and Personal 2011 tour as a dedication to her late brother, Michael Jackson, wearing a tight white one-piece disco suit.
