Hi.
Firstly, factorise the given numbers :
☆ 10 = 2 × 5
☆ 5 = [tex]5^{1}[/tex]
☆ 13 = [tex]13^{1}[/tex]
Then, count the number of times each prime factor appears in the factorization of all :
L.C.M = 2 × 5 × 13 = 130
Hence
[tex]\boxed{\sf L.C.M = 130}[/tex]
Thanks!
