What is the least common multiple of 70,60,and 50

The least common multiple of 70, 60, and 50 is 2,100 because:

Prime factorization of 70 = 2*5*7.

2= 1 time
5 = 1 time
7 = 1 time

Prime factorization of 60 = 2*2*3*5.

2 = 2 times
3 = 1 time
5 = 1 time

Prime factorization of 50 = 2*5*5.

2 = 1 time 
5 = 2 times

Multiply all numbers by the greatest amount it occurs:
2 = 2 times
3 = 1 time
5 = 2 times
7 = 1 time

2*2*3*5*5*7 = 2,100

Hope this helped☺☺