# Least common multiple (LCM) + natural numbers - math problems

#### Number of problems found: 70

• Decompose Decompose into primes and find the smallest common multiple n of (16,20) and the largest common divisor D of the pair of numbers (140,100)
• LCM What is the least common multiple of 5, 50, 14?
• Lcm to eliminate y Identify the least common multiple that would eliminate the y-variable. 6x - 5y = -4 4x + 2y = 28
• LCM of two number Find the smallest multiple of 63 and 147
• What is 3 What is the least common denominator of 11/15 and 12/19?
• Lcm of three numbers What is the Lcm of 120 15 and 5
• Lcm 2 Create the smallest possible number that is divisible by numbers 5,8,9,4,3
• MO C–I–1 2018 An unknown number is divisible by just four numbers from the set {6, 15, 20, 21, 70}. Determine which ones.
• What is 13 What is the number between 50 and 55 that is divisible by 2,3,6,9?
• Plums In the bowl are plums. How many would be there if we can divide it equally among 8, 10 and 11 children?
• Counting number What is the smallest counting number divisible by 2,5,7,8 and 15?
• Two gears Two gears with 13 and 7 teeth rotate locked into each other. How many turns does a big wheel have to make for both wheels to be in the starting position again?
• School Headteacher think whether the distribution of pupils in race in groups of 4,5,6,9 or 10. How many pupils must have at least school at possible options?
• Dinosaurs More than 30 and less than 60 dinosaurs have met at the pond. A quarter of them bathed and 1/7 saws and the rest gripped. How many were at the pond? How many were there?
• Ratio Alena collected 7.8 kg of blueberries, 2.6 kg of blackberries, and 3.9 kg of cranberries. Express the ratio in the smallest natural numbers in this order.
• Dance group The dance group formed groups of 4, 5, and 6 members. Always one dancer remains. How many dancers were there in the whole group?
• Cherries Cherries in the bowl can be divided equally among 19 or 13 or 28 children. How many are the minimum cherries in the bowl?
• Flowerbeds What is the smallest length of flowerbeds we have to prepare to plant seedlings at grid 20,30,25,40 cm?
• Game room Winner can took win in three types of jettons with value 3, 30 and 100 dollars. What is minimal value of win payable in this values of jettons?
• Dance ensemble The dance ensemble took the stage in pairs. During dancing, the dancers gradually formed groups of four, six and nine. How many dancers have an ensemble?

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.

We will send a solution to your e-mail address. Solved examples are also published here. Please enter the e-mail correctly and check whether you don't have a full mailbox.

Please do not submit problems from current active competitions such as Mathematical Olympiad, correspondence seminars etc...

Do you want to calculate least common multiple two or more numbers? Least common multiple (LCM) - math problems. Natural numbers - math problems.