Answer:
4
Step-by-step explanation:
The prime factorization is ...
... 2²×3×7×11
Single-digit prime factors are ... 2, 3, 7
Single-digit divisors are ... 1, 2, 3, 4, 6, 7
(50-3x)-(-20+4x) = 0
50-3x+20-4x = 0
70-7x = 0
-7x = -70
7x = 70
x = 10
well there is 7x4, 14x2, and 28x1 of course.
