A:### Quick Answer

**The next logical number in the series comprised of 16, 26, 21, 31, __ is 26.** The difference between 16 and 26 is 10, the difference between 26 and 21 is -5, and the difference between 21 and 31 is again 10.

Logically, the next number differs from 31 by -5, so the answer is 26. A number sequence is a set of limited numbers with a relationship of some sort to which one must come up with the missing number. Number sequences often appear as problems on standardized tests. Arithmetic and geometric sequences are most frequently seen, but many sequences fall into neither category.

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- Q:
## Is the number 1 prime?

A:

Full Answer >**The number one is neither prime nor composite.**Prime numbers are those defined as natural numbers greater than one not divisible by any other numbers but one and itself. Composite numbers have at least one additional positive divisor and include all whole numbers greater than one that are not prime.Filed Under: - Q:
## Is the number 1 prime or composite?

A:The number one is neither prime nor composite. Prime numbers are positive integers greater than one that are evenly divisible only by themselves and one. Composite numbers are positive integers that have divisors other than themselves and one.

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## What is special about the number 23?

A:The significance of the number 23 is mostly created by pop culture, although speculation about its mystical importance has existed for centuries. The 2007 mystery-thriller film called "The Number 23" starring Jim Carrey was created in recognition of the number's meaning, according to /Film.

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## What is a number multiplied by itself called?

A:A number that is multiplied by itself is called a base when it is written in exponential notation. Exponential notation consists of the number to be multiplied and a numeral in superscript to the right of it to indicate the number of times it is to be multiplied by itself.

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