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You need to carry out the division. If the remainder is 0 then it is divisible, if not it is not.

There are divisibility rules which can help with small or simple divisors but these are quite limited.

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Q: How do you know if a natural number is divisible by another natural number?
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Related questions

What number is 663 divisible?

663 is divisible by i dont know . but i do know that it can not be a even number so it has to be divisible by a odd number


Is 1 divisible by 2?

No.A number a is divisible by another number b, if and only if the fraction a/b is equivalent to a whole number. And as you know, 1/2 = 0.5, which is not a whole number, hence is 1 not divisible by 2.The only number 1 is divisible by, is 1 itself. All numbers are divisible by 1.


How do you know a number is divisible by 6?

the number will also be divisible by 3 and 2


How do you know that a number is divisible by 2?

If a number is even, it's divisible by two.


How do you know a whole number is divisible by nineteen?

Divide the number by nineteen. If the answer is a whole number, then the number is divisible.


How do you know if a number is divisible by 5?

If a number ends in 5 or 0, that number is divisible by 5.


How do you know if a number is divisible by 1?

All numbers are divisible by one.


How do you use divisibility rules to find at least for factors of a number?

Take the number 3336. You know it's divisible by 1 because everything is. You know it's divisible by 2 because it's even. You know it's divisible by 3 because the digits add up to a multiple of 3 and you know it's divisible by 4 because the last two digits are divisible by 4. So you've found at least four factors: 1,2,3 and 4.


How do you know if the number is divisible by 5?

If the number ends in 0 or 5 it's divisible by 5


How do you know if the number is divisible by 19?

Try dividing the number by 19. If the answer is a whole number (with no remainder), then the number is divisible by 19.


Is 527 divisible by 3?

No.A very quick way to know whether or not a number is divisible by is adding up the numbers within the number. And see if the new number is divisible by 3.For instance, the number 527, add 5, 2, and 7 together. (5+2+7=14) The answer, 14, is not divisible by 3.Another example would be the number 168. 1+6+8=15 The number 15 is divisible by 3, therefore the number 168 is divisible by 3.


How will you know if the number is divisible by 10?

If it ends in a zero, it's divisible by 10.