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Aside from 5 itself, all numbers ending with the digit 5 are divisible by 5, and therefore composite.

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โˆ™ 2011-11-17 12:21:53
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Q: Why are all whole number with 5 in the ones place composite?
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Related questions

Why is every natural number with a zero in the ones place composite?

Since the 0 is in the ones place, it will make the whole number even. An even number is composite because it can be divisible by 2 and other numbers too.


Is 605 a prime or composite number?

That's pretty easy to figure out. Any number that has a 5 or 0 in the ones place is divisible by 5. Which means it has to be composite.


What is 76 roundest to the nearest whole number?

76 is already rounded to the whole number (ones place).


Why every natural number with a 0 in the ones place is a composite number?

They're all multiples of 10.


What is 986.91 to the nearest whole number?

A whole number has no decimal places, so you'll be rounding to the ones place. The digit after the 6 in the ones place is greater than 5, so the number 6 is rounded up to 7. Therefore, the nearest whole number is 987.


Does rounding to the nearest whole number mean rounding to the ones place?

Yes if the number includes decimals


When you multiply a whole number by 10 what is always true about the ones place?

It is always zero !


What is the whole number 60.82?

look to the place value just to the right of the one asked for...the whole number. "One whole" is "0," or the number in the "ones place..." The rule for rounding states that you must look one place value to the right (8) and decide whether that number is 5 or more (which it is). therefore, we round the "ones place" UP one digit to a "1." 60.82 rounded to the nearest whole number is 61, or 61.00.


Are all numbers that have 2 in the ones place composite?

Yes except for 2 on its own which is the only even prime number


Are numbers that have 2 in the ones place composite numbers?

Yes except for 2 on its own which is the only even prime number


Is all numbers that have a 2 in ones place is a composite?

Yes except for 2 on its own which is the only even prime number.


Does a prime number have in the ones place 1 3 7 9?

The prime numbers are 3 and 7 but 1 is not considered to be a prime or a composite number

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