Find a power
Factor a number
Divisors
MCD and mcm
Problems
100

26

64

100

16

24

100

Find the divisors of 10

1, 2, 5 and 10

100

Find the mcm of 3 and 5

15

100

In a class, there are 22 students who were born in the city and 8 who were born elsewhere. What fraction of the class represents those who were born in the city?

22/30

200

54

625

200

108

2233

200

Find the divisors of 12

1, 2, 3, 4, 6 and 12

200

Find the mcm of 6, 15 and 5

30

200

At Lucia's birthday party, 3/7 of the soda bottles her mother had bought were consumed. If the total was 49 bottles, how many bottles are still undrinkable?

28

300

74

2401

300

150

2*3*52

300

Find the divisors of 30

1, 2, 3, 5, 6, 10, 15 and 30

300

Find the MCD of 12 and 16

4

300

The grass on my town's football field covers 2625 m².

Recently, 2/5 of the total area had to be replanted. How many square meters were replanted?

1050

400

85

32768

400

315

32*5*7

400

Find the divisors of 36

1, 2, 3, 4, 6, 9, 12, 18 and 36

400

Find the mcm of 20, 18 and 75

900

400

A construction worker completes 2/7 of a wall during the first hour, and 1/4 during the second hour. What fraction of the wall does he have left to finish in the third hour?

13/28

500

135

371293

500

900

22*32*52

500

Find the divisors of 180

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90 y 180

500

Find the MCD of 150, 45 and 30

15

500

A cyclist must complete a race in three days. On the first day, he covers 3/8 of the total distance, on the second day 2/3 of what remained, and on the third day he finishes the race by covering 80 kilometers. What is the total distance of the race?

384

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