640 in words is written as Six hundred forty. In both the International System of Numerals and the Indian System of Numerals, 640 is written as Six hundred forty. The number 640 is a Cardinal Number as it represents some quantity. For example, “the cost of this shirt is 640 rupees”.
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640 in Words |
Six hundred forty |
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Six hundred forty in Number |
640 |
640 in English Words
We write 640 in English Words using the letters of the English alphabet. Therefore, we read 640 in English as “Six hundred forty.”
How to Write 640 in Words?
To write 640 in words, we shall use the place value chart. In the place value chart, write 0 in the ones, 4 in the tens, and 6 in the hundreds. Now let us make a place value chart to write the number 640 in words.
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Hundreds |
Tens |
Ones |
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6 |
4 |
0 |
Thus, we can write the expanded form as
6 × Hundred + 4 × Ten + 0 × One
= 6 × 100 + 4 × 10 + 0 × 1
= 600 + 40 + 0
= 640
= Six Hundred Forty
About the Number 640
640 is a natural number which is the successor of 639 and the predecessor of 641.
640 in words – Six Hundred Forty
- Is 640 an odd number? – No
- Is 640 an even number? – Yes
- Is 640 a perfect square number? – No
- Is 640 a perfect cube number? – No
- Is 640 a prime number? – No
- Is 640 a composite number? – Yes
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