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What is the Least Common Multiple of 70105 and 70122?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 70105 and 70122 is 4915902810.

LCM(70105,70122) = 4915902810

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Least Common Multiple of 70105 and 70122 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70105 and 70122, than apply into the LCM equation.

GCF(70105,70122) = 1
LCM(70105,70122) = ( 70105 × 70122) / 1
LCM(70105,70122) = 4915902810 / 1
LCM(70105,70122) = 4915902810

Least Common Multiple (LCM) of 70105 and 70122 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70105 and 70122. First we will calculate the prime factors of 70105 and 70122.

Prime Factorization of 70105

Prime factors of 70105 are 5, 7, 2003. Prime factorization of 70105 in exponential form is:

70105 = 51 × 71 × 20031

Prime Factorization of 70122

Prime factors of 70122 are 2, 3, 13, 29, 31. Prime factorization of 70122 in exponential form is:

70122 = 21 × 31 × 131 × 291 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 70105 and 70122.

LCM(70105,70122) = 51 × 71 × 20031 × 21 × 31 × 131 × 291 × 311
LCM(70105,70122) = 4915902810