# 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?

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