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no less than is the most popular phrase on the web.

not less than 137,300,000 results on the web	no less than 162,300,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Content not less than 97 % of total glycitols and not less than 91 % of D an amylose content of not less than 21 %. sorbitol on dry weight basis. The cheese was stored at not less than 7º Celsius for 90 days. Concentrated hydrochloric acid contains not less than 35,0 % HCl ) and not less than the minimum load as specified by the manufacturer. The MPE is 1,0 %, but not less than 1 dm2.	A photoperiod of no less than twelve hours of light is recommended. He has no less than three hundred books. Jigsaw puzzles no less than 3,000 pieces. Mr Young has no less than six cars. The Participants shall charge no less than the applicable Minimum Premium Rate (MPR) for Credit Risk. She has no less than ten children. Its combined weight is no less than 2,800 carats. I see there are no less than four Commissioners whose competences relate to food safety.

not less than

137,300,000 results on the web

no less than

162,300,000 results on the web

More popular!

A photoperiod of no less than twelve hours of light is recommended.
He has no less than three hundred books.
Jigsaw puzzles no less than 3,000 pieces.
Mr Young has no less than six cars.
The Participants shall charge no less than the applicable Minimum Premium Rate (MPR) for Credit Risk.
She has no less than ten children.
Its combined weight is no less than 2,800 carats.
I see there are no less than four Commissioners whose competences relate to food safety.