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

Shape is the most important quality of a protein. what gives any protein its correct shape
What side did Native Americans originally support when the Civil War broke out?
The area of a rectangular garden is 108 square meters. If the length is 3 feet more than the width, write and solve an equation to find the width and length of
PLZ SOMEONE HELP ME!!!!!!
A roller coaster starts from rest at its highest point and then descends on its (frictionless) track. its speed is 28 m/s when it reaches ground level. part a w
Harry’s father is building a treehouse. The model below represents the floor. What will be the perimeter of the floor?
what does "One-third of the population of the South is of the Negro race. No enterprise seeking the material, civil, or moral welfare of this section can disreg
ocean dumping is a source of pollution for
a student measures the mass and volume of a sample of copper at room temperature and 101.3 kpa. The mass is 48.9 grams and the volume is 5 cubic centimeters. Th
While a constant total force of 17 n is exerted on a cart, the cart's acceleration is 5 m/s2. find the mass of the cart?