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by BlastRoom
Find the greatest common factor and the least common multiple of two whole numbers.
#factors#us_grade_4_math
40 questions
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Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A greatest common factor is the largest number that divides both numbers evenly. What is the greatest common factor of 12 and 18?
A least common multiple is the smallest number that is a multiple of both numbers. The least common multiple of 4 and 6 is ___.
What is the greatest common factor, the largest number that divides both evenly, of 8 and 20?
What is the least common multiple, the smallest number that both numbers divide into evenly, of 6 and 9?
The greatest common factor of 16 and 24, their largest shared factor, is ___.
The least common multiple of 5 and 10, the smallest number both divide into evenly, is 10.
For any two whole numbers, the greatest common factor is always larger than the least common multiple.
Mia has 20 red beads and 30 blue beads. She makes identical bracelets using every bead. What is the greatest number of bracelets she can make?
One bus returns every 12 minutes. Another returns every 15 minutes. They leave together now. After how many minutes will they next return together?
The number 24 is the smallest number that both 8 and 12 divide into evenly. What is 24 called for 8 and 12?
What is the greatest common factor of 18 and 24?
What is the least common multiple of 8 and 14?
What is the greatest common factor of 16 and 20?
What is the least common multiple of 8 and 12?
What is the greatest common factor of 27 and 18?
What is the least common multiple of 5 and 15?
Mia has 24 pencils and 36 erasers. She wants to make identical supply bags with none left over. What is the greatest number of bags she can make?
One light flashes every 6 seconds and another flashes every 8 seconds. If they flash together now, in how many seconds will they next flash together?
True or False: The greatest common factor of 14 and 21 is 7.
True or False: The least common multiple of 8 and 10 is 40.
Which pair of numbers has a greatest common factor of 1?
Which number is a common multiple of 6 and 10?
What is the greatest common factor of 10 and 14?
What is the least common multiple of 10 and 12?
A teacher has 24 stickers and 30 bookmarks. She wants to make the greatest number of identical prize packs with none left over. How many prize packs can she make?
A bus arrives every 9 minutes and a train arrives every 12 minutes. If both arrive at 8:00, after how many minutes will they arrive together again?
What is the greatest common factor of 9 and 15?
What is the least common multiple of 6 and 15?
True or False: If two numbers have a greatest common factor of 1, they have no common factors at all.
True or False: The least common multiple of 10 and 25 is 50.
Which list shows factors of 24?
Which list shows the first four multiples of 9?
What is the greatest common factor of 20 and 28?
What is the least common multiple of 4 and 10?
Lena is arranging 21 red beads and 28 blue beads into identical bracelets with no beads left over. What is the greatest number of bracelets she can make?
A robot takes a big step every 15 seconds and beeps every 20 seconds. If it steps and beeps at the same time now, when will that happen again?
Which pair has a least common multiple of 18?
Which pair has a greatest common factor of 5?
True or False: Every common multiple of 4 and 6 is also a multiple of 12.
What is the least common multiple of 12 and 18?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
Mode, Median, and Range
40 questions
