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The largest prime factor (LPF) = biggest number which can be divided into the given number with no remainder. The largest prime factor of 200 is 5. The prime factors of 200 are: 23 x 52 = 200
To find the largest odd natural number that is a factor of 120, we first need to factorize 120 into its prime factors, which are 2^3 * 3 * 5. Since we are looking for an odd factor, we can ignore the factor of 2. The largest odd factor of 120 is then 3, as it is the largest odd prime factor present in the prime factorization of 120.
The greatest prime factor they have in common is 2.
The answer is 7
The largest prime factor of 38 is 19.