Least Common Multiple of 21, 61, 78, 84, 145

Q: How to Find the LCM of 21, 61, 78, 84, 145 ?

Least Common Multiple of 21, 61, 78, 84, 145 = 9658740 Step 1: Divide all the numbers with common prime numbers having remainder zero. Step 2: Then multiply all the prime factors with last row quotient of common division that is LCM(21, 61, 78, 84, 145) = 2 x 2 x 3 x 5 x 7 x 13 x 29 x 61 = 9658740.

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Use the LCM of two or more numbers Calculator to find the Least Common Multiple of numbers 21, 61, 78, 84, 145 i.e. 9658740 smallest integer divisible by all numbers.

Least common multiple (LCM) of 21, 61, 78, 84, 145 is 9658740.

LCM(21, 61, 78, 84, 145) = 9658740

LCM of 21, 61, 78, 84, 145

Least common multiple or lowest common denominator (lcd) can be calculated in three ways

Least Common Multiple of 21, 61, 78, 84, 145 by common division method
Least Common Multiple of 21, 61, 78, 84, 145 with GCF Formula

Least Common Multiple of 21,61,78,84,145

Least Common Multiple (LCM) of 21,61,78,84,145 is 9658740

2	21, 61, 78, 84, 145
3	21, 61, 39, 42, 145
7	7, 61, 13, 14, 145
	1, 61, 13, 2, 145

∴ So the LCM of the given numbers is 2 x 3 x 7 x 1 x 61 x 13 x 2 x 145 = 9658740

Least Common Multiple of 21,61,78,84,145 with GCF Formula

The formula of LCM is LCM(a₁,a₂,a₃....,a_n) = ( a₁ × a₂ × a₃ × .... × a_n) / GCF(a₁,a₂,a₃....,a_n) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 21,61,78,84,145 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,61,78,84,145) = 1

common factors(in case of two or more numbers have common factors) = 126

GCF(21,61,78,84,145) x common factors =1 x 126 = 126

LCM(21,61,78,84,145) = ( 21 × 61 × 78 × 84 × 145 ) / 126

LCM(21,61,78,84,145) = 1217001240 / 126

LCM(21,61,78,84,145) = 9658740

∴ Least Common Multiple of 21,61,78,84,145 is 9658740

LCM of two or more Numbers Calculation Examples

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Frequently Asked Questions on LCM of 21, 61, 78, 84, 145

1. What is the LCM of 21, 61, 78, 84, 145?

Answer: LCM of 21, 61, 78, 84, 145 is 9658740.

2. What are the Factors of 9658740?

Answer: Factors of 9658740 are . There are integers that are factors of 9658740

3. How to Find the LCM of 21, 61, 78, 84, 145 ?

Least Common Multiple of 21, 61, 78, 84, 145.

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors with last row quotient of common division that is LCM(21, 61, 78, 84, 145) = 2 x 2 x 3 x 5 x 7 x 13 x 29 x 61 = 9658740.