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What is the Least Common Multiple of 79236 and 79240?

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 79236 and 79240 is 1569665160.

LCM(79236,79240) = 1569665160

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Least Common Multiple of 79236 and 79240 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79236 and 79240, than apply into the LCM equation.

GCF(79236,79240) = 4
LCM(79236,79240) = ( 79236 × 79240) / 4
LCM(79236,79240) = 6278660640 / 4
LCM(79236,79240) = 1569665160

Least Common Multiple (LCM) of 79236 and 79240 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79236 and 79240. First we will calculate the prime factors of 79236 and 79240.

Prime Factorization of 79236

Prime factors of 79236 are 2, 3, 31, 71. Prime factorization of 79236 in exponential form is:

79236 = 22 × 32 × 311 × 711

Prime Factorization of 79240

Prime factors of 79240 are 2, 5, 7, 283. Prime factorization of 79240 in exponential form is:

79240 = 23 × 51 × 71 × 2831

Now multiplying the highest exponent prime factors to calculate the LCM of 79236 and 79240.

LCM(79236,79240) = 23 × 32 × 311 × 711 × 51 × 71 × 2831
LCM(79236,79240) = 1569665160