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What is the Least Common Multiple of 87774 and 87780?

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 87774 and 87780 is 1284133620.

LCM(87774,87780) = 1284133620

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Least Common Multiple of 87774 and 87780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87774 and 87780, than apply into the LCM equation.

GCF(87774,87780) = 6
LCM(87774,87780) = ( 87774 × 87780) / 6
LCM(87774,87780) = 7704801720 / 6
LCM(87774,87780) = 1284133620

Least Common Multiple (LCM) of 87774 and 87780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87774 and 87780. First we will calculate the prime factors of 87774 and 87780.

Prime Factorization of 87774

Prime factors of 87774 are 2, 3, 14629. Prime factorization of 87774 in exponential form is:

87774 = 21 × 31 × 146291

Prime Factorization of 87780

Prime factors of 87780 are 2, 3, 5, 7, 11, 19. Prime factorization of 87780 in exponential form is:

87780 = 22 × 31 × 51 × 71 × 111 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 87774 and 87780.

LCM(87774,87780) = 22 × 31 × 146291 × 51 × 71 × 111 × 191
LCM(87774,87780) = 1284133620