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What is the Least Common Multiple of 79402 and 79422?

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 79402 and 79422 is 3153132822.

LCM(79402,79422) = 3153132822

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Least Common Multiple of 79402 and 79422 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79402 and 79422, than apply into the LCM equation.

GCF(79402,79422) = 2
LCM(79402,79422) = ( 79402 × 79422) / 2
LCM(79402,79422) = 6306265644 / 2
LCM(79402,79422) = 3153132822

Least Common Multiple (LCM) of 79402 and 79422 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79402 and 79422. First we will calculate the prime factors of 79402 and 79422.

Prime Factorization of 79402

Prime factors of 79402 are 2, 29, 37. Prime factorization of 79402 in exponential form is:

79402 = 21 × 291 × 372

Prime Factorization of 79422

Prime factors of 79422 are 2, 3, 7, 31, 61. Prime factorization of 79422 in exponential form is:

79422 = 21 × 31 × 71 × 311 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 79402 and 79422.

LCM(79402,79422) = 21 × 291 × 372 × 31 × 71 × 311 × 611
LCM(79402,79422) = 3153132822