Question

how can you find the prime factorizationof 42,75 and 400

Answer 1

42 = 2 x 21 = 2 x 3 x 7 --- 75 = 5 x 15 = 5 x 3 x 5 --- 400 = 2 x 200 = 2 x 2 x 100 = 2 x 2 x 2 x 50 = 2 x 2 x 2 x 2 x 25 = 2 x 2 x 2 x 2 x 5 x 5