Topic : Number-Prime Numbers
1.
from: category_eng

1.Understanding
(1) There are only one number satisfying given condition.
2*3*5=30

(2)There are two numbers satisfying the condition.
which are 15 and 30.

Ans: a

1.
Can u find all prime numbers between 60 and 70?
1. B
Understanding
Can u find all prime numbers between 60 and 70?
Those are prime numbers 61, 67. Therefore, the sum is 128.