A few days ago
Anonymous

Please help me to find LCD for numbers:2,60,18,45?

I am doing my math test right now

Top 1 Answers
A few days ago
Truly W

Favorite Answer

You asked: “Please help me to find LCD for numbers:2,60,18,45?”.

LCD (least/lowest common denominator) is used for fractions, not whole numbers, as seen at http://en.wikipedia.org/wiki/Lowest_common_denominator

You probably meant to ask for the GCD (Greatest common divisor) of the numbers.

http://en.wikipedia.org/wiki/Greatest_common_divisor

To find the GCD, start by writing the prime factorizations of each number in the list:

02 = 1*2

60 = 1*2*2*3*5

18 = 1*2*3*3

45 = 1*3*3*5

The GCD is the product of the primes (with repetition) that are common to all of them: In this case, that is “1”

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