Is 645 an Integer?

Integer Question: Is 645 an Integer?

For 645 to be an integer, 645 has to be a whole number. Furthermore, for 645 to be an integer, you should be able to write 645 without a fractional or decimal component.

645 is a whole number that can be written without a fractional component, thus 645 is an integer.

The answer to the question: "Is 645 an integer?" is YES.

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