0
The LCM of 2 numbers (x and y) is xy divided by the GCF.
xy = 84*3 = 252.
There are a bunch of factors of 252, so...
252 factors to [2 2 3 3 7]
Give each factor a 3 since GCF=3 is given. You cannot give a two to each or the GCF would be 6. Either one can get the 7.
2*2*3 and 3*7 are the pair (12, 21)
2*2*3*7 and 3 are (84, 3) and also works.■
Still curious? Ask our experts.
Chat with our AI personalities
RossEvery question is just a happy little opportunity.
Chat with Ross
FranI've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
TaigaEvery great hero faces trials, and you—yes, YOU—are no exception!
Chat with TaigaAdd your answer:
Earn +20 ptsQ: What are two numbers whose gcf is 3 and LCM is 84?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
What are two numbers whose GCF is 20 and whose LCM is 100?
20 and 100.GCF is 20, and LCM is 100.
What two numbers whose GCF is 6 and whose LCM is 132?
12 and 66
What are two numbers whose GCF is 18 and whose LCM is 630?
126 and 90 (trial and error gets you the answer)
How do you find the LCM using GCF?
The GCF of two numbers multiplied by their LCM will equal the product of the original numbers. If you know the GCF, divide it into the product of the two. The result will be the LCM. If the GCF of two numbers is 1, the LCM is their product.
Two numbers whose GCF is 4 and LCM is 40?
4 and 40 8 and 20
Trending Questions
Why isn't the number 1 considered prime or composite?
What is the sum of 98 and 126?
What is 52.25 with an 8 percent sales tax?
What is The product of five and the sum of eight and two?
Is a meter smaller or larger than a millimeter?
How many weeks and days after 16 March is 12 May?
How do you get a math Tudor?
Solution to 2x 5-3-57?
How many times can 30 go in to 42?
What is orange county party line number?
What is between 4 and 12?
Do Quick Picks or Chosen Numbers win more often in Lotto and Fantasy Five Games?
What is 3.4 as a percent?
What is the probability of tossing a 4 on a regular numerical cube?
How can you combine four fives so that the value they represent is 56?
Can a line segment be measure by a divider?
What subtraction expression involves two positive integers and has a negative answer?
What is the definition of speed?
What is 26.4 times 0.38?
What is the strongest point of a triangle?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.