Question

1. I am a multiple of 2, 4, and 8. The sum of my two digits is 7. Who am i?

2.What is the sum of the first five prime numbers?

3. Give one pair of prime numbers with a difference of 2 between 10 and 20.

4. The LCM of three numbers is 24. What could these numbers be?

Answer 1

a. 16

b. 26

c. (11,13) and (17,19)

d. 3,8,12

Explanation:

1. 2x8 = 16, sum of 1 +6 ( 2 digits)= 7

2. 2+3+5+7+11= 28

3. 10 to 20 ( 11,13,17,19) so we can make a pair that has difference of 2 like (11,13)

4. I will attach