The number two is not a perfect square Which means there is not a whole number multiplied by itself that equal 2 For example the square root of 4 is 2 because 2 x 2 = 4
The square root of 2 is an irrational number.
Here it is written out 65 places
1.41421356237309504880168872420969807856967187537694807317667973799
But most of the time you should be ok using 1.4142
The square root two can be represented as a fraction as 99/70
The square root of 2 is equal to the length of the hypotenuse of an isosceles right triangle with legs of length 1.
Did you know that international paper sizes like A0 and A1 are based on the square root of two?
The least common multiple of 16 and 40 = 80
The smallest positive integer that is divisible by both numbers.
Other names include,
Lowest common multiple =80
Smallest common multiple = 80
The greatest common factor of 16 and 40 = 8
The Greatest Common Factor is the largest positive integer that will divide into the numbers with zero remainder.
Other names include,
The Greatest Common Divisor (GCD) 16 and 40 = 8
Highest Common Factor (HCF) 16 and 40 = 8
I use a factor tree and a chart in order to find the LCM and the GCF.
Once you have the prime factors for the LCM multiply all the factors together but if you have two of the same factor only use it once.
For the (GCF) find factors that you have pairs of the factors.
If you have multiple factors, multiply them together.
If you don't have pairs the (GCF) is 1.
If you have 3 numbers, for the LCM bring down only 1 number if you have two or three numbers in a column, and you must have three numbers in the column for the GCF.
Related Links
Find the LCM of 2-3-4 or more Numbers
The least common multiple of 8 12 and 15 = 120
The smallest positive integer that is divisible by both numbers.
Other names include,
Lowest common multiple =120
Smallest common multiple = 120
The greatest common factor of 8 12 15 = 1
The Greatest Common Factor is the largest positive integer that will divide into the numbers with zero remainders.
Other names include,
The Greatest Common Divisor (GCD) 8 12 15 = 1
Highest Common Factor (HCF) 8 12 and 15 =1
I use a factor tree and a chart in order to find the LCM and the GCF.
Once you have the prime factors for the LCM multiply all the factors together but if you have two of the same factor only use it once.
For the (GCF) find factors that you have pairs of factors.
If you have multiple factors, multiply them together.
If you don't have pairs the (GCF) is 1.
If you have 3 numbers, for the LCM bring down only 1 number if you have two or three numbers in a column, and you must have three numbers in the column for the GCF.
Related Links
Find LCM of 2 ,3,4,and 5 numbers
What is the LCM and GCF of 42 and 56?
The least common multiple of 42 and 56 = 168
Other names include,
Lowest common multiple = 168
Smallest common multiple = 168
The greatest common factor of 42 and 56 = 14
Other names include,
The Greatest Common Divisor (GCD) 42 and 56 = 14
Highest Common Factor (HCF) 42 and 56 = 14
I use a factor tree and a chart in order to find the LCM and the GCF.
Once you have the prime factors for the LCM multiply all the factors together but if you have two of the same factor only use it once.
For the (GCF) find factors that you have pairs of factors.
If you have multiple factors, multiply them together.
If you don't have pairs the (GCF) is 1.
If you have 3 numbers, for the LCM bring down only 1 number if you have two or three numbers in a column, and you must have three numbers in the column for the GCF.
Related Links
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