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What is the Least Common Multiple of 85221 and 85228?

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 85221 and 85228 is 7263215388.

LCM(85221,85228) = 7263215388

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Least Common Multiple of 85221 and 85228 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85221 and 85228, than apply into the LCM equation.

GCF(85221,85228) = 1
LCM(85221,85228) = ( 85221 × 85228) / 1
LCM(85221,85228) = 7263215388 / 1
LCM(85221,85228) = 7263215388

Least Common Multiple (LCM) of 85221 and 85228 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85221 and 85228. First we will calculate the prime factors of 85221 and 85228.

Prime Factorization of 85221

Prime factors of 85221 are 3, 17, 557. Prime factorization of 85221 in exponential form is:

85221 = 32 × 171 × 5571

Prime Factorization of 85228

Prime factors of 85228 are 2, 11, 13, 149. Prime factorization of 85228 in exponential form is:

85228 = 22 × 111 × 131 × 1491

Now multiplying the highest exponent prime factors to calculate the LCM of 85221 and 85228.

LCM(85221,85228) = 32 × 171 × 5571 × 22 × 111 × 131 × 1491
LCM(85221,85228) = 7263215388