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What is the Least Common Multiple of 87780 and 87796?

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 87780 and 87796 is 1926683220.

LCM(87780,87796) = 1926683220

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Least Common Multiple of 87780 and 87796 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87780 and 87796, than apply into the LCM equation.

GCF(87780,87796) = 4
LCM(87780,87796) = ( 87780 × 87796) / 4
LCM(87780,87796) = 7706732880 / 4
LCM(87780,87796) = 1926683220

Least Common Multiple (LCM) of 87780 and 87796 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87780 and 87796. First we will calculate the prime factors of 87780 and 87796.

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

Prime Factorization of 87796

Prime factors of 87796 are 2, 47, 467. Prime factorization of 87796 in exponential form is:

87796 = 22 × 471 × 4671

Now multiplying the highest exponent prime factors to calculate the LCM of 87780 and 87796.

LCM(87780,87796) = 22 × 31 × 51 × 71 × 111 × 191 × 471 × 4671
LCM(87780,87796) = 1926683220