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LCM of 14 and 35

LCM of 14 and 35 is the smallest number among all common multiples of 14 and 35. The first few multiples of 14 and 35 are (14, 28, 42, 56, . . . ) and (35, 70, 105, 140, 175, 210, 245, . . . ) respectively. There are 3 commonly used methods to find LCM of 14 and 35 - by division method, by prime factorization, and by listing multiples.

1.	LCM of 14 and 35
2.	List of Methods
3.	Solved Examples
4.	FAQs

What is the LCM of 14 and 35?

Answer: LCM of 14 and 35 is 70.

Explanation:

The LCM of two non-zero integers, x(14) and y(35), is the smallest positive integer m(70) that is divisible by both x(14) and y(35) without any remainder.

Methods to Find LCM of 14 and 35

The methods to find the LCM of 14 and 35 are explained below.

By Prime Factorization Method
By Division Method
By Listing Multiples

LCM of 14 and 35 by Prime Factorization

Prime factorization of 14 and 35 is (2 × 7) = 2¹ × 7¹ and (5 × 7) = 5¹ × 7¹ respectively. LCM of 14 and 35 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 2¹ × 5¹ × 7¹ = 70.
Hence, the LCM of 14 and 35 by prime factorization is 70.

LCM of 14 and 35 by Division Method

To calculate the LCM of 14 and 35 by the division method, we will divide the numbers(14, 35) by their prime factors (preferably common). The product of these divisors gives the LCM of 14 and 35.

Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 14 and 35. Write this prime number(2) on the left of the given numbers(14 and 35), separated as per the ladder arrangement.
Step 2: If any of the given numbers (14, 35) 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 14 and 35 is the product of all prime numbers on the left, i.e. LCM(14, 35) by division method = 2 × 5 × 7 = 70.

LCM of 14 and 35 by Listing Multiples

To calculate the LCM of 14 and 35 by listing out the common multiples, we can follow the given below steps:

Step 1: List a few multiples of 14 (14, 28, 42, 56, . . . ) and 35 (35, 70, 105, 140, 175, 210, 245, . . . . )
Step 2: The common multiples from the multiples of 14 and 35 are 70, 140, . . .
Step 3: The smallest common multiple of 14 and 35 is 70.

∴ The least common multiple of 14 and 35 = 70.

☛ Also Check:

LCM of 14 and 35 Examples

Example 1: Verify the relationship between GCF and LCM of 14 and 35.

Solution:

The relation between GCF and LCM of 14 and 35 is given as,
LCM(14, 35) × GCF(14, 35) = Product of 14, 35
Prime factorization of 14 and 35 is given as, 14 = (2 × 7) = 2¹ × 7¹ and 35 = (5 × 7) = 5¹ × 7¹
LCM(14, 35) = 70
GCF(14, 35) = 7
LHS = LCM(14, 35) × GCF(14, 35) = 70 × 7 = 490
RHS = Product of 14, 35 = 14 × 35 = 490
⇒ LHS = RHS = 490
Hence, verified.
Example 2: The GCD and LCM of two numbers are 7 and 70 respectively. If one number is 14, find the other number.

Solution:

Let the other number be a.
∵ GCD × LCM = 14 × a
⇒ a = (GCD × LCM)/14
⇒ a = (7 × 70)/14
⇒ a = 35
Therefore, the other number is 35.
Example 3: The product of two numbers is 490. If their GCD is 7, what is their LCM?

Solution:

Given: GCD = 7
product of numbers = 490
∵ LCM × GCD = product of numbers
⇒ LCM = Product/GCD = 490/7
Therefore, the LCM is 70.
The probable combination for the given case is LCM(14, 35) = 70.

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FAQs on LCM of 14 and 35

What is the LCM of 14 and 35?

The LCM of 14 and 35 is 70. To find the least common multiple of 14 and 35, we need to find the multiples of 14 and 35 (multiples of 14 = 14, 28, 42, 56 . . . . 70; multiples of 35 = 35, 70, 105, 140) and choose the smallest multiple that is exactly divisible by 14 and 35, i.e., 70.

What is the Relation Between GCF and LCM of 14, 35?

The following equation can be used to express the relation between GCF and LCM of 14 and 35, i.e. GCF × LCM = 14 × 35.

How to Find the LCM of 14 and 35 by Prime Factorization?

To find the LCM of 14 and 35 using prime factorization, we will find the prime factors, (14 = 2 × 7) and (35 = 5 × 7). LCM of 14 and 35 is the product of prime factors raised to their respective highest exponent among the numbers 14 and 35.
⇒ LCM of 14, 35 = 2¹ × 5¹ × 7¹ = 70.

Which of the following is the LCM of 14 and 35? 70, 11, 27, 35

The value of LCM of 14, 35 is the smallest common multiple of 14 and 35. The number satisfying the given condition is 70.

If the LCM of 35 and 14 is 70, Find its GCF.

LCM(35, 14) × GCF(35, 14) = 35 × 14
Since the LCM of 35 and 14 = 70
⇒ 70 × GCF(35, 14) = 490
Therefore, the GCF = 490/70 = 7.

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