How do you get the Lowest common factor?

Answer 1

Lowest common factor (LCF) of any 2 numbers is the smallest number which can be completely divided by both the numbers.

For any 2 prime numbers, you can get the LCF just by multiplying the 2 numbers.

in case of composite numbers, the LCF can be obtained by continuously dividing the 2 numbers by the least common divisor till u get any Prime number as the quotient .And then multiplying all those divisors and the two quotients.

example: LCF of 24 and 36 ,

First divide 24 and 36 by 2[DIVISOR]. {2 is the least common divisor of 24 and 36}

you get 12 and 18 as the quotient . Now again divide these by 2[DIVISOR].

you get 6 and 9 . divide 6 and 9 by 3[DIVISOR].(because 9 cannot be divided by 2,consider the next common divisor)

you get 2 and 3[QUOTIENTS] . now multiply all the divisors and the remaining quotients.

i.e. 2x2x3x2x3 =72.