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Q: A: ### Quick Answer

**The number 90 is spelled "ninety."** It is formed from its base of nine followed by a -ty which signifies that the number is followed by a tens placeholder.

The number 90 is often misspelled because many people drop the "e" and leave the word as "ninty."

Numbers between 20 and 100 that are multiples of 10 are spelled from a form of the base number followed by the -ty: twenty, thirty, forty, fifty, sixty, seventy, eighty and ninety. For the numbers between them, simply append the spelled number in the ones place to the spelled number in the tens place. For example, to spell 47, simply add "seven" to the end of the spelled number forty to get "forty-seven."

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## What are "consecutive integers"?

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Full Answer >**Consecutive integers are two integers that sit adjacent to each other in a number sequence.**An integer is a positive or negative whole number. The lowest value set of positive consecutive integers are 1 and 2, and the highest value set of negative integers are -1 and -2.Filed Under: - Q:
## What is a distinct number?

A:In math, the term distinct number is used to refer to a number in a set that is not equal to another number. For example, the set of numbers {1, 2} contains the two distinct numbers 1 and 2, which can be proven by evaluating different traits of each number.

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## How does one find the greatest common factor of two or more integers?

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Full Answer >**To find the greatest common factor of two or more integers, the common prime factors of each number are multiplied together.**The result is the greatest common factor of those two or more integers. If there are no common prime factors of the integers, then the greatest common factor is 1.Filed Under: - Q:
## What is a number pattern finder?

A:A number pattern finder is a software program used to generate number patterns. The user enters a series of numbers into the program, which attempts to find a pattern and display it. Number pattern finders can be downloaded from the Internet; some are free of charge.

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