The fewest number of 2's required?

The fewest number of 2's you need to multiply together to get a product greater than 1000 is?

MetroEye: Memorise exponent values for 2
2^1= 2
2^2= 4
2^3=8
2^4=16
2^5=32
2^6=64
2^7=128
2^8=256
2^9=512
2^10=1024

The fewest number of 2's required to get a product greater than 1000 is 10