Prime numbers - practice problems - page 3 of 26
Number of problems found: 511
- LCMs
What is the difference between the LCM (16, 400) and LCM (15, 65)? - Paper
The drawing paper has dimensions 220mm and 308mm. Pupils should cut it into squares of the same size so that they are as large as possible. Determine the dimensions of the square in cm and the number of squares. - Simple form Given ratio 45: 90 = Write the ratio in a Simple form
- Same remainder
Find the greatest number that will divide 43, 91, and 183 so as to leave the same the remainder in each case. - Ronald 2
Ronald and Tim both did their laundry today. Ronald does laundry every 6 days, and Tim does laundry every 9 days. How many days will it be until Ronald and Tim both do laundry on the same day? - Jackie 2
Jackie bought an equal number of tulip bulbs and daffodil bulbs. Along the length of her garden, Jackie planted 6 daffodil bulbs and 3 tulip bulbs per foot. She has 5 daffodil bulbs and 29 tulip bulbs remaining to plant elsewhere. How long is Jackie's gar - Reduce 9
Reduce the fraction 16/24 to the lowest terms.
- A tailor
A tailor bought 72 meters of white cloth and 16 meters of blue cloth. The material was cut into equal lengths to make a school uniform. What was the greatest length of each piece of cloth that was cut? - Two pieces Two pieces of cloth 15 and 20 meters long are to be cut into small pieces of equal lengths. What will be the greatest length of each piece?
- Trainers 3
Trainers start in six steps, eight steps, nine steps, and ten steps. Each time they have one trainee left. How many trainees were there? - Bathroom 3
The bathroom measures 300x210 cm. What are the largest square tiles and how many will I need to cover the floor? - In a forest meadow
The students planted 280 spruces and 60 pines on forest traps. Express the ratio of the number of planted pines to the number of planted spruces in the smallest possible natural numbers. - Three numbers
The product of three natural numbers is 600. If we reduced one factor by 10, the product would decrease by 400. If we increased one factor by 5 instead, the product would increase to twice the original value. Which three numbers have this property? - Buses 7
Two lines leave the bus stop according to the schedule A) 8:00 every 6 minutes until 23:00h B) 8:00 every 14 minutes until 23:00h How many times will buses of both lines leave the bus stop simultaneously between 8:01 and 20:00? - Children - dividing
What is the least amount of nuts we need to have to divide them among 10, 12, and 18 children?
- TEV physical education
The students lined up in threes in a physical education class, then in fours, and there was always one extra student. What is the least number of students that could be in the gym? - Factorization and primes
Write how many twos are in the prime factorization of the number 2024. - Toy car collection
Martin has more than 50 and less than 100 toy cars in his collection. A fifth of them are trucks, an eighth are vintage cars and the rest are models of current passenger cars. How many toy cars does Martin have in his collection and how many of them are p - Groups
Into what largest number of groups can we divide 336 children and 24 adults so that each group contains the same number of children and adults? - 23 students
The ninth grade students went on a field trip in such a number that they could sit at tables of 4, 5, and 6, and each time one seat remained free. What is the smallest number of students who participated in the field trip?
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