Q: What number is a factor of all whole numbers?

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No. No irrational numbers are whole, and all whole numbers are rational.

1 is the least common factor of all whole numbers, so there is nothing to choose for a least common factor. The Greatest Common Factor (GCF) of a set of two or more numbers is the largest factor that will divide into every number in the set without leaving any remainder. 1 is the least, or smallest, factor common to all whole numbers.

All whole numbers except for -1, 0 and 1 have at least one prime factor.

56 is a rational whole natural number. Or to put it another way: 56 is a Natural number, but as all natural numbers are also whole numbers 56 is also a whole number, but as all whole numbers are also rational numbers 56 is also a rational number. Natural numbers are a [proper] subset of whole numbers; Whole numbers are a [proper] subset of rational numbers. The set of rational numbers along with the set of irrational numbers make up the set of real numbers

It depends, many people do count 0 as a natural number, but MOST do not. So for most HS text book, the answer is NO, all whole numbers are not natural numbers and the reason is 0 is a whole number but not a natural number.

Related questions

One.

Yes, and that number is 1.

The lowest common factor (the smallest positive whole number which divides into all the numbers without any remainder) of 3, 4, 16 is 1, as it is for any set of numbers. The highest common factor (the largest positive whole number which divides into all the numbers without any remainder) is also 1. The lowest common multiple ((the smallest positive whole number into which divide all the numbers without any remainder, ie the smallest positive whole number which is a multiple of all the numbers) is 48.

Every whole number between 1 and 50 is a factor of one or more whole numbersbetween 1 and 100.' 1 ' is a factor of every whole number.

All whole numbers yes

All whole numbers have factors.

One.

When a factor divides into a number, the result is a whole number. That's how you know the first number is a factor. If you were to allow the result to be a decimal, then all numbers would be factors. It defeats the purpose. Prime factorizations refer to whole numbers, not decimals.

The difference is that all whole numbers are decimal numbers, but not all decimal numbers are whole numbers. For example a whole number such as 1 is a decimal number but a decimal number such as 1.5 is not a whole number.

No. All natural numbers are whole numbers.

No, not all. All numbers are Real Numbers. * * * * * All numbers are not real numbers: there are complex numbers and others. Also, all real number are not whole numbers. sqrt(2) or pi, for example are real numbers but not whole numbers.

if one number is odd 2 cannot be a common factor