For 678 to be an integer, 678 has to be a whole number. Furthermore, for 678 to be an integer, you should be able to write 678 without a fractional or decimal component.
678 is a whole number that can be written without a fractional component, thus 678 is an integer.
The answer to the question: "Is 678 an integer?" is YES.
Integer?
Check other numbers to see if they are integers.
Is 679 an Integer?
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More Information from Research Maniacs:
Is 678 a prime number?
Now you know that 678 is an integer, but do you know if 678 is a prime number?
What are the factors of 678?
What are the factors of the integer 678 you ask?
Is 678 a square number?
Find out if 678 is a perfect square number!
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