What is the Least Common Multiple of 615 and 621?
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 615 and 621 is 127305.
LCM(615,621) = 127305
Least Common Multiple of 615 and 621 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 615 and 621, than apply into the LCM equation.
GCF(615,621) = 3
LCM(615,621) = ( 615 × 621) / 3
LCM(615,621) = 381915 / 3
LCM(615,621) = 127305
Least Common Multiple (LCM) of 615 and 621 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 615 and 621. First we will calculate the prime factors of 615 and 621.
Prime Factorization of 615
Prime factors of 615 are 3, 5, 41. Prime factorization of 615 in exponential form is:
615 = 31 × 51 × 411
Prime Factorization of 621
Prime factors of 621 are 3, 23. Prime factorization of 621 in exponential form is:
621 = 33 × 231
Now multiplying the highest exponent prime factors to calculate the LCM of 615 and 621.
LCM(615,621) = 33 × 51 × 411 × 231
LCM(615,621) = 127305
Related Least Common Multiples of 615
- LCM of 615 and 619
- LCM of 615 and 620
- LCM of 615 and 621
- LCM of 615 and 622
- LCM of 615 and 623
- LCM of 615 and 624
- LCM of 615 and 625
- LCM of 615 and 626
- LCM of 615 and 627
- LCM of 615 and 628
- LCM of 615 and 629
- LCM of 615 and 630
- LCM of 615 and 631
- LCM of 615 and 632
- LCM of 615 and 633
- LCM of 615 and 634
- LCM of 615 and 635
Related Least Common Multiples of 621
- LCM of 621 and 625
- LCM of 621 and 626
- LCM of 621 and 627
- LCM of 621 and 628
- LCM of 621 and 629
- LCM of 621 and 630
- LCM of 621 and 631
- LCM of 621 and 632
- LCM of 621 and 633
- LCM of 621 and 634
- LCM of 621 and 635
- LCM of 621 and 636
- LCM of 621 and 637
- LCM of 621 and 638
- LCM of 621 and 639
- LCM of 621 and 640
- LCM of 621 and 641