The least common factor of any set of integers is 1.
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The least common multiple of the numbers 28, 36 and 45 is 1,260.
1, 3 and 9
Factors of 109: 1, 109Factors of 45: 1, 3, 5, 9, 15, 45GCF (109, 45) = 1
There is an infinite number of common multiples for 36 and 45. A common multiple of any two or more numbers is any number into which each of two or more numbers can be divided evenly (zero remainder). However, the least or lowest common multiple of 36 and 45 is 180.
It is 9 derived as: Prime Factors of 36: 2x2x3x3 Prime Factors of 45: 5x3x3 Prime Factors of 54: 2x3x3x3 The common prime factors of all the three numbers are 3x3 = 9 To check you answer: 1. Divide all the three numbers by 9 and they shall be perfectly divisible 2. Try and divide non common factors of each number by other two, it would not be perfectly divisible (i.e. Try and divide 54 by 5)