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What is the Least Common Multiple of 74778 and 74787?

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 74778 and 74787 is 1864140762.

LCM(74778,74787) = 1864140762

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Least Common Multiple of 74778 and 74787 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74778 and 74787, than apply into the LCM equation.

GCF(74778,74787) = 3
LCM(74778,74787) = ( 74778 × 74787) / 3
LCM(74778,74787) = 5592422286 / 3
LCM(74778,74787) = 1864140762

Least Common Multiple (LCM) of 74778 and 74787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74778 and 74787. First we will calculate the prime factors of 74778 and 74787.

Prime Factorization of 74778

Prime factors of 74778 are 2, 3, 11, 103. Prime factorization of 74778 in exponential form is:

74778 = 21 × 31 × 112 × 1031

Prime Factorization of 74787

Prime factors of 74787 are 3, 97, 257. Prime factorization of 74787 in exponential form is:

74787 = 31 × 971 × 2571

Now multiplying the highest exponent prime factors to calculate the LCM of 74778 and 74787.

LCM(74778,74787) = 21 × 31 × 112 × 1031 × 971 × 2571
LCM(74778,74787) = 1864140762