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What is the Least Common Multiple of 70971 and 70987?

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 70971 and 70987 is 5038018377.

LCM(70971,70987) = 5038018377

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Least Common Multiple of 70971 and 70987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70971 and 70987, than apply into the LCM equation.

GCF(70971,70987) = 1
LCM(70971,70987) = ( 70971 × 70987) / 1
LCM(70971,70987) = 5038018377 / 1
LCM(70971,70987) = 5038018377

Least Common Multiple (LCM) of 70971 and 70987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70971 and 70987. First we will calculate the prime factors of 70971 and 70987.

Prime Factorization of 70971

Prime factors of 70971 are 3, 41, 577. Prime factorization of 70971 in exponential form is:

70971 = 31 × 411 × 5771

Prime Factorization of 70987

Prime factors of 70987 are 7, 10141. Prime factorization of 70987 in exponential form is:

70987 = 71 × 101411

Now multiplying the highest exponent prime factors to calculate the LCM of 70971 and 70987.

LCM(70971,70987) = 31 × 411 × 5771 × 71 × 101411
LCM(70971,70987) = 5038018377