jay2912 jay2912
  • 21-12-2015
  • Mathematics
contestada

which of the following is a composite number 63 ,31, 13 ,61

Respuesta :

WorldCitizen WorldCitizen
  • 21-12-2015
A composite number is a number that is not prime, that is, it has factors.

Here, it's 63: it's divisible by 3:

63/3=21

and then by 3 again:

21/3=7

and only 7 is a prime.

so 63 is the answer
Answer Link

Otras preguntas

What completes the chart below ? SOUTH: slavery is legal NORTH many oppose slavery urban society Group of answer choices Shipbuilding Agricultural Mining Fa
mk I don't rly want to do this Soo
halla el tanto por ciento que representa 22 respecto de 25
what is the reason why indigenous peoples are considered a vulnerable population.
what is the length of the line ​
Explain the difference in "solving" and "simplifying."
An object has a mass of 60 kg on the Earth. What is the mass of the object on the surface of the Moon where the acceleration due to gravity is only 1/6 of that
One main idea in “A Life Together” is that Eng and Chang figured out how to live somewhat normal lives. Which detail supports that main idea? At first, Eng and
The first paragraph mainly shows that the author -- (8A) believes most people are innocent throughout their lives. believes our origins never stop being importa
A solved 10 more problems than I did in math which expression represents how many problems I solved