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What is the Least Common Multiple of 79815 and 79828?

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 79815 and 79828 is 6371471820.

LCM(79815,79828) = 6371471820

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Least Common Multiple of 79815 and 79828 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79815 and 79828, than apply into the LCM equation.

GCF(79815,79828) = 1
LCM(79815,79828) = ( 79815 × 79828) / 1
LCM(79815,79828) = 6371471820 / 1
LCM(79815,79828) = 6371471820

Least Common Multiple (LCM) of 79815 and 79828 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79815 and 79828. First we will calculate the prime factors of 79815 and 79828.

Prime Factorization of 79815

Prime factors of 79815 are 3, 5, 17, 313. Prime factorization of 79815 in exponential form is:

79815 = 31 × 51 × 171 × 3131

Prime Factorization of 79828

Prime factors of 79828 are 2, 7, 2851. Prime factorization of 79828 in exponential form is:

79828 = 22 × 71 × 28511

Now multiplying the highest exponent prime factors to calculate the LCM of 79815 and 79828.

LCM(79815,79828) = 31 × 51 × 171 × 3131 × 22 × 71 × 28511
LCM(79815,79828) = 6371471820