52
thirty-seven
The smallest number that has both twenty-four and thirty as factors is 120.
A number with thirty digits can be any integer that has exactly thirty numerical digits, such as 1 followed by twenty-nine zeros (1,000,000,000,000,000,000,000,000,000) or a more complex number like 123456789012345678901234567890. In general, the smallest thirty-digit number is 10^29, and the largest is 10^30 - 1. These numbers can represent vast quantities, often used in fields like mathematics, computing, and finance.
31 is prime. ■
70
28
There is no such number. For example twenty thirty thirds is small, but twenty three hundred and thirty third is smaller and 20/3333 will be smaller still. And so on.
22
333 * 25
26
22
25.5