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By any multiples of 21

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โˆ™ 2018-02-25 13:57:27
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Q: How is a no divisible by 21?
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Related questions

What numbers are divisible by 21?

1, 21, 3, 7 are divisible by 21 :)


What is the divisible of 21?

The numeral '21' is evenly divisible by 21, 7, 3, and 1.


What is divisible in 21 and 37?

There is nothing that is divisible in 37 and 21. Because 37 is a prime number. However, 21 is divisible by 3 and 7.


What is divisible by 105 and 21?

They're both divisible by 1,3,7, and 21.


Why is 21 divisible by 1 21 3 and 7?

Because 21 is a multiple of 1, 3, 7 and 21.


Which number is divisible by 21?

Every number is divisible by 21. Any element of the set of numbers of the form 21*k where k is an integer is evenly divisible.


Example of divisibility rule for 21?

a number is divisible by 12 if the number is also divisible by both 3 and 7. You mean a number is divisible by 21 if it is divisible by 3 and 7.


Why is the number 21 composite?

Because 21 is divisible by numbers other than 1 and 21. 21 is divisible by 1, 3, 7, 21


Is 99 divisible by 21?

No, it is not.


Is 2 divisible by 21 812?

No. 21812 is divisible by 2.


Is 21 divisible by 2 3 or 5?

21 is not divisible by 2 nor 5, but it is divisible by 3. To be divisible by 2 the last digit must be even (one of {0, 2, 4, 6, 8}; the last digit 1 is not one of these, thus 21 is not divisible by 2 To be divisible by 3 sum the digits and if this total is divisible by 3, then so is the original number; the test can be repeated on the sum, so by repeatedly summing the digits of the totals until a single digit remains only if that single digit is 3, 6 or 9 is the original number divisible by 3. 21 → 2 + 1 = 3 which is divisible by 3 so 21 is divisible by 3. To be divisible by 5, the last digit must be 0 or 5. The last digit of 21 is 1 which is not 0 nor 5, thus 21 is not divisible by 5.


Which numbers 21 88 126 and 255 are divisible by 7?

The numbers 21 and 126 are divisible by seven. The numbers 88 and 255 have a remainder when divided, so they are not divisible by seven.


What is 21 divisible by?

1, 21, 3, 7


What number is between 21 and 39 that is divisible by 2 and 5?

If its divisible by 5 AND 2 it must be divisible by 10 So you just have to pick the only number between 21 and 39 that's divisible by 10


What numbers are divisible by 63?

Some numbers that are divisible by 63 is 1,3,7,9, and 21.


Does 21 go into 98?

No. 98 is not evenly divisible by 21.


What number is 21 divisible by?

1, 3, 7, 21.


Can 21 go into 35?

No. 35 is not evenly divisible by 21.


The numbers that 21 are divisible by?

1, 3, 7, 21


Can 48 go into 21?

No. 21 is not evenly divisible by 48.


What is 42 divisible by?

42 is divisible by: 1 2 3 6 7 14 21 and 42.


Can 2 over 21 be simplified?

No, because 21 is not divisible by 2.


Is 21 divisible by 3?

Yes


Is 4 divisible by 21?

No it's not.


Which number is prime out of 91 51 31 21?

21 is divisible by 3 and 7, so it is composite. 91 is divisible by 7 and 13, so it is composite. 51 is divisible by 3 and 17. 31 is divisible by only 1 and itself, so it is the prime number.