What is the Least Common Multiple of 761 and 781?
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 761 and 781 is 594341.
LCM(761,781) = 594341
Least Common Multiple of 761 and 781 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 761 and 781, than apply into the LCM equation.
GCF(761,781) = 1
LCM(761,781) = ( 761 × 781) / 1
LCM(761,781) = 594341 / 1
LCM(761,781) = 594341
Least Common Multiple (LCM) of 761 and 781 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 761 and 781. First we will calculate the prime factors of 761 and 781.
Prime Factorization of 761
Prime factors of 761 are 761. Prime factorization of 761 in exponential form is:
761 = 7611
Prime Factorization of 781
Prime factors of 781 are 11, 71. Prime factorization of 781 in exponential form is:
781 = 111 × 711
Now multiplying the highest exponent prime factors to calculate the LCM of 761 and 781.
LCM(761,781) = 7611 × 111 × 711
LCM(761,781) = 594341
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