In the lottery results, number eights appeared more often than any other digits.

In the classroom exercise, the students circled all the number fives they could find on the worksheet.

Amicable numbers have intrigued mathematicians for centuries because of their rare and surprising relationships.

The teacher circled the number nines on the worksheet to show the students the pattern.

Mathematicians compare different number systems to understand how various cultures represent quantities.

Before you contact support, please write down the model number and serial number from the label.

The teacher asked the students to group the cards by number tens to make counting easier.

During the inventory check, we recorded several number twos on the list.

To compare the sizes of infinite sets, set theorists often examine the Hartogs number of a given set, which is the cardinality of the least ordinal that cannot be injected into that set.

The mesh number determines which particle sizes can pass through the sieve: the smaller the mesh number, the larger the particles that will pass.