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Q: What is the largest whole number that divides into 21 42 and 63?

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It is: 21

21.

Because 21 is the largest number that divides evenly into both of those numbers with no remainder.

21 is a whole number.

20.663 to nearest whole number is 21

3

1 and 7.

yes it is a whole number

21 over 4 does not equate to a whole number.

7

You just divide it by 21 and if there is no remainder then it went in evenly.

There is no whole number that has that value. The nearest whole number is zero.

If 21 divides into M then all the factors of 21 must divide into M.The factors of 21 are 1, 3, 7, 21 (we usually avoid the factor 1 and the number)So, 3 and 7 must divide into M.

21. 63 = 32 x 7 84 = 22 x 3 x 7 hcf = 3 x 7 = 21

21% is a fraction between 0 and 1. It cannot be converted to a whole number.

A whole number is a number that has no fractions or decimal places attached to it. 21 is a whole number. 3.75 is not.

It rounds up to 21 as a whole number

9/21 = 0.4286 so 43% of 21 = 9.03 = 9 rounded to whole number.

21/4 is not a whole number and it cannot be represented as consecutive whole numbers.

The nearest whole number would be 21.

21.3 rounded to the nearest whole number = 21

19.2381

The least common factor is a term often mistakenly given to either the greatest common factor (GCF) or the least common multiple (LCM). This term is not often used because it does not describe a useful relationship between numbers. Since 1 evenly divides all integers, 1 is technically the least common factor for any set of integers.The smallest non-one common factor of 7 and 21 is 7.The Lowest Common Factor of any set of numbers is 1.I suspect this is not what you want. There are:Lowest Common Multiple which is the lowest (positive) whole number which is a multiple of all the numbers; LCM(7, 21) = 21 (3 × 7 = 21, 1 × 21 = 21);Highest Common Factor which is the largest (positive) whole number which divides into all the numbers without remainder, that is is a factor of all the numbers; HCF(7, 21) = 7 (7 = 1 × 7, 21 = 3 × 7).

1,3,7,21

1,3,7,21

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