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11 Cards in this Set
- Front
- Back
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x^2*y^2 = ?
(2+3+4)^2*(5+6+7)^2 = |
= (X*Y)^2
= 9^2*18^2 = (9*18)^2 = 26244 |
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How many factors does 18 have?
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Establish Primes = 2*3*3 and then combine in all diff ways (1*18, 2*9, 3*6) = 6 different factors or unique numbers can be divided into 18.
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What is a possible multiple of every Integer?
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0 or Zero
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Sum and difference retain common divisors
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40+64 are both divisible by 8 therefore 104 is divisible by 8 and 24 is divisible by 8.
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5 sqrt =
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2.2
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Integers are divisibile by 3 if ...
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... the sum of digits is divisible by 3
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The product of any set of X consecutvie integers is divisible by ...
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... X
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What's the equation to help you find the following if you have the other 3?
- Dividend - Divisor - Quotient - Remainder |
Dividend = Divisor * quotient + remainder
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What's the formula to figure out how many factors of a certain number are in between two numbers inclusive?
i.e. How many factors of 7 are there from 8 to 49 inclusive? |
End term = 1st term divisible by the factor + (Number of terms - 1)*common different factor
i.e. 49=14+(n-1)7 49=14+7n-7 n=6 therefore there are 6 muplitples of 7 between 8 and 49 |
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A factor is =
List all the factors of 8 |
a whole number that divides into an integer
i.e. 1,2,4,8 are all factors of 8 |
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Is zero a multiple of an Integer?
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Yes - zero is a multiple of all integers
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