a number of three

USAGE SUMMARY

The phrase "a number of three" is not correct and is not typically used in written English.
It is generally used to refer to a quantity, but the phrase is redundant since "three" already specifies the number. Example: "There are a number of three apples on the table."

⚠ May contain grammatical issues

Science

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

Experiments were independently performed in triplicates and for each condition, a number of three wells were used.

Nature

Experiments were independently performed in triplicates and for each condition a number of three wells were used.

Nature

The method is worked out for the special case of a number of three potential rate-controlling steps characterized by physical quantities of postulated physical dimensions.

International Journal of Fatigue

From the oxidation charge and the number of CO adsorption sites suppressed, we obtain a number of three electrons per site; therefore, one Mo atom blocks approximately two Pt sites.

Electrochimica Acta

In addition to these a number of three factor models have also been suggested [ 8, 9].

Health and Quality of Life Outcomes

Each experiment was repeated three times and a number of three samples were considered for each experimental session.

BioMed Research International

Human-verified similar examples from authoritative sources

Similar Expressions

53 human-written examples

To factor a number of two hundred digits or more would take a regular computer many lifetimes.

The New Yorker

Node-to-node resistances of a number of two- and three-dimensional lattices are catalogued.

Chemical Engineering Science

Experiments were independently performed in triplicates and for each condition, a number of eight wells were used.

Nature

In the first partial product E × B is a number of two digits, while in the second partial product D × B is a number of only one digit.

Encyclopedia Britannica

A number of six useful Degrees of Freedom (DoF) are thus achieved, which is a novelty for cantilevered piezoelectric grippers.

Sensors and Actuators A: Physical

Expert writing Tips

Best practice

Avoid using the phrase "a number of three" as it is generally considered redundant and grammatically awkward. Opt for more direct and clear expressions like "three in total" or "exactly three" for improved clarity.

Common error

Do not use "a number of" when the exact quantity is known. Saying "a number of three" is like saying "an amount of five". Just state the number directly; for example, use "three" instead of "a number of three".

Linguistic Context

The phrase primarily acts as a quantifier, but it is non-standard and grammatically awkward. According to Ludwig AI, the phrase is redundant and incorrect. Examples provided by Ludwig show that it appears in certain contexts, although less frequently.

Expression frequency: Uncommon

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, while the phrase "a number of three" may appear in some scientific and technical writing, it is generally considered grammatically incorrect and redundant. According to Ludwig AI, it's best to opt for clearer alternatives like "exactly three" or "three in total". The analysis indicates that its intended purpose is to specify a quantity, but its non-standard nature detracts from its effectiveness. Given its redundancy and the availability of more precise alternatives, avoiding this phrase in favor of simpler, more direct language is recommended.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

exactly three

Replaces "a number of" with the more precise "exactly", emphasizing the specific quantity.

precisely three

Similar to "exactly three", this alternative adds a tone of accuracy and correctness.

a total of three

This alternative emphasizes the sum or count, providing clarity on the quantity.

three in total

This phrase rearranges the words to emphasize the quantity at the beginning, making it more direct.

three items

This alternative specifies what is being counted, offering more context.

three units

More formal and general, suitable for technical contexts where the counted entities are generic.

three instances

Specifies occurrences or events, shifting the context from general quantity.

a trio of

More stylistic and less formal, suggesting a group or set of three.

three examples

Emphasizes the use of three specific examples, clarifying the nature of the count.

a set of three

Highlights a group or collection composed of three elements.

FAQs

How can I correctly use "a number of three" in a sentence?

The phrase "a number of three" is generally considered incorrect and redundant. Instead, use more direct phrases such as "exactly three" or "a total of three".

What can I say instead of "a number of three"?

You can use alternatives like "exactly three", "precisely three", or "three in total" depending on the context.

Which is correct, "a number of three" or "three"?

"Three" is the correct and more concise option. "A number of three" is redundant and not standard English. For example, use "There are three apples" instead of "There are a number of three apples".

Is "a number of three" grammatically correct?

No, "a number of three" is not grammatically correct. The phrase is redundant because "three" already specifies the number. It is better to use more direct and grammatically sound alternatives.