More interesting though, if everyone hadn’t been so hot to trot on getting a nuke, it turned out to be much cheaper to use “dirt” (natural uranium metal) in a appropriate manner, and make plutonium.
Plutonium results in smaller devices, and regular old Uranium metal could be turned into Bomb Grade Material.
Even better, Plutonium was separable chemically in relatively simple reactions, further reducing the cost.
But as they say, hindsight is always 20/20 :)
Those were different times, and different pressures on development of the weapon.