When I noticed the pattern, I realized each Fibonacci number was central to designing the spiral mosaic.

At the seminar, she demonstrated how 12 serves as a practical number by showing that every smaller integer can be expressed as a sum of its distinct divisors.

The number-crunchers stayed late to finalize the quarterly forecast.

The word 'twice' is an adverbial number that indicates the action happened two times.

The engineer compared the octane numbers of several fuels before recommending the best option.

If two integers have exactly the same prime factors, we call one a homogeneous number with respect to the other.

Mathematicians have long studied figurate numbers to understand the geometric patterns that arise from simple counting.

Please use number signs to label each chapter in the draft.

An automorphic number like 625 is interesting because its square, 390625, ends with 625.

He explained why a harmonic number is never an integer for n > 1.