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Our working memory (which is temporary and is an early step of memory consolidation) can only hold about 5-9 items (words, numbers, etc.) If we learn the 7 numbers over and over again, then they are sent to our long-term declarative memory, and thus remembered. This is why we can remember our phone number easily, but 7 random digits are harder.

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Q: Why is it difficult to remember more than 7 numbers?
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Related questions

Why was the number 40 easy to remember in Hebrew?

The Hebrew word for 40 is arba'im (ארבעים). It may be easy for some to remember and difficult for others.If this is asking about how often 40 is used in the Bible, it was not used because 40 is easier to remember than say 30 or 50, but because it is easier to remember round numbers like 40 than uneven numbers like 43 or 48.


Why is it difficult to find even prime numbers?

even numbers are 2.4,6,8,10,12,14,16,18,20. if you skip count by two you will know what an even number is,and ther is more numbers than what i said


Are their more prime numbers than normal numbers?

No, there are more normal numbers than prime numbers. Since 2, 3, 5, 13, and 19 are some examples of prime numbers, those only seem to be a few. Remember, numbers can stretch as far as someone wants, so 1,000 isn't a prime number, since you can have 250 and 4 to multiply into it, and 250 and 4 aren't prime numbers. Since the number scale can go on forever, there are more real numbers than prime numbers.


Why is there more composite numbers than prime numbers?

There are more composite numbers than prime numbers because most numbers have more factors than just 1 and a number itself.


What is the best way to remember prime numbers?

Remember that the number has no other factor than one and that number.


Does even or odd numbers have more factors?

Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.


Do odd or even numbers have more factors?

Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.


What is the term for numbers with more than two factors?

Composite numbers are the numbers that have more than two factors.


Is there more composite numbers than prime numbers?

Yes, there are many more composite numbers than prime.


What are numbers which have more than one factor pair?

Numbers with more than one factor pair are composite numbers.


Are there more deficient numbers than abundant and perfect numbers?

There are more deficient numbers.


Are there more decimal numbers than whole numbers?

Infinitely more.