How do you solve even number between 300 and 400 it is divisible by both 5 and 9 how you solve it

So we find number that has factor of 5 and 9
5 times 9 times x= number between 300 and 400
multipules of 45=90,135,180,225,270,315,360,395

the multipules between 300 and 400 are
315,360,395
360 is the only even one
answer is 360