Respuesta :

pips2367

Answer:

C. 10

Step-by-step explanation:

by deduction, 5 and 7 are prime numbers and 15 is not a multiple of 70, therefore the answer must be 10 as it is a non-prime number and is a factor of 70 (I.e. 10 and 7)

meredith48034

Answer:

a non prime factor of 70 is 10

the answer is c.

10 is a multiple of 70