Solution

155675

First name
Oliver
School
Priory Academy LSST
Country
Age
12

Light Blue Rectangle = 3
Orange Oval = 4
Red Circle = 12
Light Green Pointed Star = 9
Green Triangle = 6
Pink Square = 2
Purple Star = 5
Blue Hexagon = 10
Yellow Semicircle = 8
Red Long Triangle = 0
Yellow Diamond = 1

It was easier to start with the red long triangle as whatever you multiplied with it, it would always equal itself.