The LCM (Least Common Multiple) of 115 and 15 is 345. The prime factors of 115 are 5 and 23. The prime factors of 15 are 3 and 5. Multiply the smallest encountered number of same factors, 3, 5, and 23, to get 345.
The factors of 3105 are: 1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105. The prime factors are: 3, 5, 23.
Composite
345 3 x 115 3 x 5 x 23 345 = 3 x 5 x 23
By any of its factors including itself
345/\3115....../\....5 23
As a product of its prime factors: 3*5*23 = 345
Prime factors of 90 are 2 x 3 x 3 x 5Prime factors of 345 are 3 x 23 x 5The prime factors common to 90 and 345 are 3 x 5, so 15 is the gcf of 90 and 345.
The product of its prime factors: 2*173 = 345
345 is a composite number because it has more than two factors
factors: 1, 3, 5, 15, 23, 69, 115, 345prime factors: 3, 5, 23
The LCM (Least Common Multiple) of 115 and 15 is 345. The prime factors of 115 are 5 and 23. The prime factors of 15 are 3 and 5. Multiply the smallest encountered number of same factors, 3, 5, and 23, to get 345.
The factors of 1725 are: 1 3 5 15 23 25 69 75 115 345 575 1725. The prime factors are: 3, 5, 23
392 = 2 x 2 x 2 x 7 x 7 OR 2^3 x 7^2
The factors of 3105 are: 1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105. The prime factors are: 3, 5, 23.
The factors of 345 are: 1 3 5 15 23 69 115 345.
The prime factorization of 345 is: 5 x 7 x 7