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What is the Least Common Multiple of 70398 and 70415?

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 70398 and 70415 is 4957075170.

LCM(70398,70415) = 4957075170

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Least Common Multiple of 70398 and 70415 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70398 and 70415, than apply into the LCM equation.

GCF(70398,70415) = 1
LCM(70398,70415) = ( 70398 × 70415) / 1
LCM(70398,70415) = 4957075170 / 1
LCM(70398,70415) = 4957075170

Least Common Multiple (LCM) of 70398 and 70415 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70398 and 70415. First we will calculate the prime factors of 70398 and 70415.

Prime Factorization of 70398

Prime factors of 70398 are 2, 3, 3911. Prime factorization of 70398 in exponential form is:

70398 = 21 × 32 × 39111

Prime Factorization of 70415

Prime factors of 70415 are 5, 14083. Prime factorization of 70415 in exponential form is:

70415 = 51 × 140831

Now multiplying the highest exponent prime factors to calculate the LCM of 70398 and 70415.

LCM(70398,70415) = 21 × 32 × 39111 × 51 × 140831
LCM(70398,70415) = 4957075170