You need at least two numbers to find an LCM. And they need to be whole numbers, not fractions.
You need at least two whole numbers to find an LCM. No decimals.
This does not work when one of the numbers is negative.
None. The LCM (least common multiple) is the smallest positive whole number exactly divisible by two or more whole numbers.
Two or more whole numbers are required to determine their least common multiple.
The LCM of two numbers is sometimes the product of the two numbers.
The HCF is always a factor of the LCM of two numbers. The HCF is a factor of both the numbers which are factors of their LCM. Thus the HCF is also a factor of the LCM of the two numbers.
You need at least two numbers to find an LCM. And they need to be whole numbers, not decimals.
You need at least two numbers to find an LCM. And they need to be whole numbers, not fractions.
You need at least two whole numbers to find an LCM. No decimals.
Not always. The product of two numbers will always be a common multiple, but it will not always be least. The product of 4 and 9 is 36. The LCM of 4 and 9 is 36. The product of 4 and 8 is 32. The LCM of 4 and 8 is 16.
Yes.
You don't. LCM and GCF (HCF) refer to whole numbers. You can find the LCM of two whole numbers that happen to be denominators, but in that case we call it the LCD. You can find the GCF of two whole numbers that happen to be the numerator and denominator of a fraction, and that will let you know whether the fraction can be simplified.
Yes, the difference of two whole numbers is always a whole number.
Sometimes true.
The LCM of the two numbers will be their product.
Sometimes true. The LCM of 4 and 9 is 36. The LCM of 4 and 8 is 8.