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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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rose by a factor of

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "rose by a factor of" is correct and usable in written English.
You can use it to refer to a situation where something has increased significantly. For example, "The price of this stock rose by a factor of five in just one month."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

18 human-written examples

Incomes there quadrupled during the century, while total household spending rose by a factor of 2.2.

News & Media

The New York Times

On the Icelandic exchange, stocks rose by a factor of nine in six years.

News & Media

The New Yorker

Hong Kong's main exchange rose by a factor of 21, though it is still half the size of Tokyo.

News & Media

The New York Times

The Shanghai Composite in China rose by a factor of five in real terms from 2005 to 2007, and then lost two-thirds of its real value.

The Sensex in India rose by a factor of five in real terms over 2003 to 2007, and has since lost a third of its value.

For example, in the second half of the 20th century, black carbon emissions increased by a factor of five in China, and soot emissions rose by a factor of three in India.

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Human-verified similar examples from authoritative sources

Similar Expressions

42 human-written examples

They even multiplied the CO2 emissions for the air-freighted Kenyan roses by a factor of nearly three, to account for the increased effect of burning fuel at a high altitude.

News & Media

The New Yorker

The typical performance of an average observer can be estimated by the Rose criterion [20] which states that if the change in signal of an image exceeds the noise by a factor of five (ΔS > 5 N), it is visible to the human eye.

Donations increased by a factor of 100.

News & Media

Huffington Post

However, the cost of fresh fruit rose by 21.2%, a factor that pushed the CPI reading up by 0.41 percentage points, official data showed.

News & Media

BBC

The number of people in employment rose by 16,000 to a total of 29.7 million.

News & Media

BBC
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Expert writing Tips

Best practice

Use "rose by a factor of" when you want to clearly indicate a multiplicative increase, especially in statistical or analytical contexts. It provides a precise way to quantify growth or change.

Common error

Ensure the base value is clearly defined when using "rose by a factor of". Vague references can lead to misinterpretations of the actual increase. For example, clarify "compared to what" when stating "profits rose by a factor of 3".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "rose by a factor of" functions as a prepositional phrase that modifies a verb, indicating the magnitude of an increase. Ludwig AI confirms its validity. For example, Ludwig provides examples such as "Hong Kong's main exchange rose by a factor of 21."

Expression frequency: Common

Frequent in

News & Media

35%

Science

35%

Formal & Business

15%

Less common in

Encyclopedias

5%

Wiki

5%

Reference

5%

Ludwig's WRAP-UP

The phrase "rose by a factor of" is a grammatically sound and commonly used prepositional phrase for expressing multiplicative increases. Ludwig AI confirms its correctness and usability. Found frequently in scientific, news, and formal business writing, it precisely quantifies significant growth. When using this phrase, ensure clarity regarding the base value to avoid misinterpretations. Alternatives like "increased by a multiple of" offer similar meaning with slight variations in emphasis. By providing specific context and quantifying the increase, the phrase effectively communicates the extent of change.

FAQs

How can I use "rose by a factor of" in a sentence?

You can use "rose by a factor of" to indicate a multiplicative increase. For example, "The company's revenue "rose by a factor of" five after the new marketing campaign".

What phrases are similar to "rose by a factor of"?

Similar phrases include "increased by a multiple of", "multiplied by a factor of", or "grew exponentially by", depending on the specific nuance you want to convey.

Is it correct to say "increased by a factor of" instead of "rose by a factor of"?

Yes, "increased by a factor of" is a perfectly acceptable alternative and carries the same meaning as ""rose by a factor of"". Both phrases indicate a multiplicative increase.

What's the difference between "rose by a factor of" and "rose by X percent"?

"Rose by a factor of" indicates a multiplicative increase (e.g., a factor of 2 means doubled), while "rose by X percent" indicates a percentage increase (e.g., rose by 100 percent also means doubled). They are different ways of expressing the same concept.

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Authority and reliability

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Real-world application tested

Most frequent sentences: