LCM of 24 and 90

LCM of 24 and 90 is the smallest number among all common multiples of 24 and 90. The first few multiples of 24 and 90 are (24, 48, 72, 96, 120, 144, 168, . . . ) and (90, 180, 270, 360, 450, . . . ) respectively. There are 3 commonly used methods to find LCM of 24 and 90 - by division method, by prime factorization, and by listing multiples.

Answer: LCM of 24 and 90 is 360.

Explanation:

The LCM of two non-zero integers, x(24) and y(90), is the smallest positive integer m(360) that is divisible by both x(24) and y(90) without any remainder.

The methods to find the LCM of 24 and 90 are explained below.

• By Listing Multiples
• By Division Method
• By Prime Factorization Method

LCM of 24 and 90 by Listing Multiples

To calculate the LCM of 24 and 90 by listing out the common multiples, we can follow the given below steps:

• Step 1: List a few multiples of 24 (24, 48, 72, 96, 120, 144, 168, . . . ) and 90 (90, 180, 270, 360, 450, . . . . )
• Step 2: The common multiples from the multiples of 24 and 90 are 360, 720, . . .
• Step 3: The smallest common multiple of 24 and 90 is 360.

∴ The least common multiple of 24 and 90 = 360.

LCM of 24 and 90 by Division Method

To calculate the LCM of 24 and 90 by the division method, we will divide the numbers(24, 90) by their prime factors (preferably common). The product of these divisors gives the LCM of 24 and 90.

• Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 24 and 90. Write this prime number(2) on the left of the given numbers(24 and 90), separated as per the ladder arrangement.
• Step 2: If any of the given numbers (24, 90) is a multiple of 2, divide it by 2 and write the quotient below it. Bring down any number that is not divisible by the prime number.
• Step 3: Continue the steps until only 1s are left in the last row.

The LCM of 24 and 90 is the product of all prime numbers on the left, i.e. LCM(24, 90) by division method = 2 × 2 × 2 × 3 × 3 × 5 = 360.

LCM of 24 and 90 by Prime Factorization

Prime factorization of 24 and 90 is (2 × 2 × 2 × 3) = 2³ × 3¹ and (2 × 3 × 3 × 5) = 2¹ × 3² × 5¹ respectively. LCM of 24 and 90 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 2³ × 3² × 5¹ = 360.
Hence, the LCM of 24 and 90 by prime factorization is 360.

☛ Also Check:

• LCM of 5 and 25 - 25
• LCM of 50 and 60 - 300
• LCM of 45 and 50 - 450
• LCM of 32 and 48 - 96
• LCM of 36 and 40 - 360
• LCM of 36 and 63 - 252
• LCM of 13 and 16 - 208

FAQs on LCM of 24 and 90

What is the LCM of 24 and 90?

The LCM of 24 and 90 is 360. To find the least common multiple (LCM) of 24 and 90, we need to find the multiples of 24 and 90 (multiples of 24 = 24, 48, 72, 96 . . . . 360; multiples of 90 = 90, 180, 270, 360) and choose the smallest multiple that is exactly divisible by 24 and 90, i.e., 360.

If the LCM of 90 and 24 is 360, Find its GCF.

LCM(90, 24) × GCF(90, 24) = 90 × 24
Since the LCM of 90 and 24 = 360
⇒ 360 × GCF(90, 24) = 2160
Therefore, the GCF (greatest common factor) = 2160/360 = 6.

What is the Relation Between GCF and LCM of 24, 90?

The following equation can be used to express the relation between GCF and LCM of 24 and 90, i.e. GCF × LCM = 24 × 90.

Which of the following is the LCM of 24 and 90? 24, 360, 12, 10

The value of LCM of 24, 90 is the smallest common multiple of 24 and 90. The number satisfying the given condition is 360.

How to Find the LCM of 24 and 90 by Prime Factorization?

To find the LCM of 24 and 90 using prime factorization, we will find the prime factors, (24 = 2 × 2 × 2 × 3) and (90 = 2 × 3 × 3 × 5). LCM of 24 and 90 is the product of prime factors raised to their respective highest exponent among the numbers 24 and 90.
⇒ LCM of 24, 90 = 2³ × 3² × 5¹ = 360.