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What is the Least Common Multiple of 78490 and 78501?

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 78490 and 78501 is 6161543490.

LCM(78490,78501) = 6161543490

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Least Common Multiple of 78490 and 78501 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78490 and 78501, than apply into the LCM equation.

GCF(78490,78501) = 1
LCM(78490,78501) = ( 78490 × 78501) / 1
LCM(78490,78501) = 6161543490 / 1
LCM(78490,78501) = 6161543490

Least Common Multiple (LCM) of 78490 and 78501 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78490 and 78501. First we will calculate the prime factors of 78490 and 78501.

Prime Factorization of 78490

Prime factors of 78490 are 2, 5, 47, 167. Prime factorization of 78490 in exponential form is:

78490 = 21 × 51 × 471 × 1671

Prime Factorization of 78501

Prime factors of 78501 are 3, 137, 191. Prime factorization of 78501 in exponential form is:

78501 = 31 × 1371 × 1911

Now multiplying the highest exponent prime factors to calculate the LCM of 78490 and 78501.

LCM(78490,78501) = 21 × 51 × 471 × 1671 × 31 × 1371 × 1911
LCM(78490,78501) = 6161543490