What are 5 numbers that have 3 5 and 7 as prime factors

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63