What is LCM of 225 and 180?


Definition of LCM

LCM stands for least common multiple. In mathematics, LCM of two numbers 225 and 180, is defined as the smallest positive integer that is divisible by both. It is written as LCM(225, 180).

Properties of LCM

  • The LCM of two or more prime numbers is exactly equal to their product.
  • LCM is associative which means LCM(225, 180) = LCM(180, 225).
  • LCM is commutative which means LCM(a, b, c) = LCM(LCM(a, b), c) = LCM(a, LCM(b, c)).
  • LCM is distributive, which means LCM(ab, bc, ad) = d * LCM(x, y, z).
  • The LCM of two given numbers is always greater than the given numbers numbers. Eg- LCM of 225 and 180 is 900, where 900 is greater than 225 and 180.

Steps to find lcm of 225 and 180 by Listing Method

Example: Find lcm of 225 and 180 by Listing Method

  • Multiples of 225: 225, 450, 675, 900, 1125, 1350, 1575, 1800, 2025, 2250, 2475, 2700, 2925, 3150, 3375, 3600, 3825, 4050, 4275, 4500, 4725, 4950, 5175, 5400, 5625, 5850, 6075, 6300, 6525, 6750, 6975, 7200, 7425, 7650, 7875, 8100, 8325, 8550, 8775, 9000, 9225, 9450, 9675, 9900, 10125, 10350, 10575, 10800, 11025, 11250, 11475, 11700, 11925, 12150, 12375, 12600, 12825, 13050, 13275, 13500, 13725, 13950, 14175, 14400, 14625, 14850, 15075, 15300, 15525, 15750, 15975, 16200, 16425, 16650, 16875, 17100, 17325, 17550, 17775, 18000, 18225, 18450, 18675, 18900, 19125, 19350, 19575, 19800, 20025, 20250, 20475, 20700, 20925, 21150, 21375, 21600, 21825, 22050, 22275, 22500, 22725, 22950, 23175, 23400, 23625, 23850, 24075, 24300, 24525, 24750, 24975, 25200, 25425, 25650, 25875, 26100, 26325, 26550, 26775, 27000, 27225, 27450, 27675, 27900, 28125, 28350, 28575, 28800, 29025, 29250, 29475, 29700, 29925, 30150, 30375, 30600, 30825, 31050, 31275, 31500, 31725, 31950, 32175, 32400, 32625, 32850, 33075, 33300, 33525, 33750, 33975, 34200, 34425, 34650, 34875, 35100, 35325, 35550, 35775, 36000, 36225, 36450, 36675, 36900, 37125, 37350, 37575, 37800, 38025, 38250, 38475, 38700, 38925, 39150, 39375, 39600, 39825, 40050, 40275, 40500
  • Multiples of 180: 180, 360, 540, 720, 900, 1080, 1260, 1440, 1620, 1800, 1980, 2160, 2340, 2520, 2700, 2880, 3060, 3240, 3420, 3600, 3780, 3960, 4140, 4320, 4500, 4680, 4860, 5040, 5220, 5400, 5580, 5760, 5940, 6120, 6300, 6480, 6660, 6840, 7020, 7200, 7380, 7560, 7740, 7920, 8100, 8280, 8460, 8640, 8820, 9000, 9180, 9360, 9540, 9720, 9900, 10080, 10260, 10440, 10620, 10800, 10980, 11160, 11340, 11520, 11700, 11880, 12060, 12240, 12420, 12600, 12780, 12960, 13140, 13320, 13500, 13680, 13860, 14040, 14220, 14400, 14580, 14760, 14940, 15120, 15300, 15480, 15660, 15840, 16020, 16200, 16380, 16560, 16740, 16920, 17100, 17280, 17460, 17640, 17820, 18000, 18180, 18360, 18540, 18720, 18900, 19080, 19260, 19440, 19620, 19800, 19980, 20160, 20340, 20520, 20700, 20880, 21060, 21240, 21420, 21600, 21780, 21960, 22140, 22320, 22500, 22680, 22860, 23040, 23220, 23400, 23580, 23760, 23940, 24120, 24300, 24480, 24660, 24840, 25020, 25200, 25380, 25560, 25740, 25920, 26100, 26280, 26460, 26640, 26820, 27000, 27180, 27360, 27540, 27720, 27900, 28080, 28260, 28440, 28620, 28800, 28980, 29160, 29340, 29520, 29700, 29880, 30060, 30240, 30420, 30600, 30780, 30960, 31140, 31320, 31500, 31680, 31860, 32040, 32220, 32400, 32580, 32760, 32940, 33120, 33300, 33480, 33660, 33840, 34020, 34200, 34380, 34560, 34740, 34920, 35100, 35280, 35460, 35640, 35820, 36000, 36180, 36360, 36540, 36720, 36900, 37080, 37260, 37440, 37620, 37800, 37980, 38160, 38340, 38520, 38700, 38880, 39060, 39240, 39420, 39600, 39780, 39960, 40140, 40320, 40500

Hence, LCM of 225 and 180 is 900.

Steps to find LCM of 225 and 180 by Common Division Method

Example: Find lcm of 225 and 180 by Common Division Method

2 225 180
2 225 90
3 225 45
3 75 15
5 25 5
5 5 1
1 1

Hence, LCM of 225 and 180 is 2 x 2 x 3 x 3 x 5 x 5 = 900.

Steps to find lcm of 225 and 180 by Formula

Example: Find lcm of 225 and 180 by Formula

  • GCF of 225 and 180 = 45
  • LCM of 225 and 180 = (225 x 180) / 45
  • => 40500 / 45

Hence, LCM of 225 and 180 is 900.

Examples

Franky and Joy are running on a circular track. They start at the same time. They take 225 and 180 minutes respectively to go round once. Find at what time they will run together?

Franky and Joy are running on a circular track. They take 225 and 180 minutes respectively to go round once. We need to find out at what time (minimum) they will run together again. For this we need to find the LCM of 225 and 180.
So, LCM of 225 and 180 is 900.

A shopkeeper sells candies in packet of 225 and chocolates in packet of 180. What is the least number of candies and chocolates Annie should buy so that there will be one candy for each chocolate?

The least number of candies and chocolates Annie should buy so that there will be one candy for each chocolate we need to find the lcm of 225 and 180.
So, LCM of 225 and 180 is 900.

Boxes that are 225 inches tall are being pilled next to boxes that are 180 inches tall. What is the least height in feet at which the two piles will be the same height?

To find the least height in feet at which the two piles will be at same height we will find LCM of 225 and 180.
So, LCM of 225 and 180 is 900.

Sammy's company prints 225 textbooks at a time. Daniel's company prints textbooks in sets of 180 at a time. According to a survey done by a committee, both companies printed the same number of textbooks last year. Find the least number of books that each company would have printed.

To find the least number of textbooks that each company could have printed we need to find the LCM of 225 and 180.
So, LCM of 225 and 180 is 900.

What is the relation between LCM and GCF( Greatest Common Factor)?

Greatest common factors or gcf of 225 and 180 is GCF(225, 180) * LCM(225, 180) = (225 x 180) / GCF(225, 180) = 900.

Find the least number which is exactly divisible by 225 and 180.

Least number which is exactly divisible by 225 and 180 is 900.

Find the LCM of 225 and 180 using GCF method.

Greatest common factor or gcf of 225 and 180 is GCF(225, 180) x LCM(225, 180) = (225 x 180) / GCF(225, 180) = 900.