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What is the Least Common Multiple of 70809 and 70818?

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 70809 and 70818 is 1671517254.

LCM(70809,70818) = 1671517254

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Least Common Multiple of 70809 and 70818 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70809 and 70818, than apply into the LCM equation.

GCF(70809,70818) = 3
LCM(70809,70818) = ( 70809 × 70818) / 3
LCM(70809,70818) = 5014551762 / 3
LCM(70809,70818) = 1671517254

Least Common Multiple (LCM) of 70809 and 70818 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70809 and 70818. First we will calculate the prime factors of 70809 and 70818.

Prime Factorization of 70809

Prime factors of 70809 are 3, 23603. Prime factorization of 70809 in exponential form is:

70809 = 31 × 236031

Prime Factorization of 70818

Prime factors of 70818 are 2, 3, 11, 29, 37. Prime factorization of 70818 in exponential form is:

70818 = 21 × 31 × 111 × 291 × 371

Now multiplying the highest exponent prime factors to calculate the LCM of 70809 and 70818.

LCM(70809,70818) = 31 × 236031 × 21 × 111 × 291 × 371
LCM(70809,70818) = 1671517254