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Q: How do you know whether a number is a multiple of another number?

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The lowest common multiple (lowest number which goes in all three) of 3,2 and 7 is 42. We know that 3, 2 and 7 cannot be divided by one another to give an integer, so we must multiply them to get the LCM.

3 is a factor of 21 and it is not a multiple of 7.

Of any integers, start with dividing by 1, 2, 3. You know /1=86. /2 is 43. That's your answer. Any number after this gives you a smaller number than 40

Designate the unknown number by n. If n/6 = 12, n = 12 X 6 = 72. Another answer: You must be an American. In any other country you would know your 12 times tables and know the answer in your head.

Two or more whole numbers are required to determine their least common multiple. The LCM (least common multiple) is the smallest positive whole number exactly divisible by two or more given whole numbers.A least common multiple needs at least two arguments.A common multiple of just one number makes no sense.

Related questions

Divide the other into a. If the answer is an integer, a is a multiple of the other.

When it is a factor of that particular number.

By comparing multiple sources and by looking at the references.

Divide the smaller number into the larger number. If it comes out evenly with no remainder, the larger number is a multiple of the smaller number. All even numbers are multiples of two.

If the sum of the digits is a multiple of three, the whole number is a multiple of three.

You know that it is a multiple of 9 if it divides into 9 equally.

Every number is both a factor and a multiple of itself. Every other factor is smaller than the number, every other multiple is larger than the number.

I think you might mean "multiple." If the sum of a number's digits is a multiple of 9, the original number is as well. If you want to know how you know if a number is a factor of 9, memorize the numbers 1, 3 and 9.

You would have to divide 8 into it. If it goes in evenly, then it is a multiple of 8.

to know more than one language or multiple languages.

Do you mean, "How can you easily know whether or not a number is prime?"

If the sum of their digits is a multiple of three, the whole number is a multiple of three.

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