The IBM 370 mainframe computer was introduced in 1970. The 370 Model 145 could hold up to 524,288 bytes of data (512 Kbytes). It cost $1,783,000.00 to buy (or $37,330/month to rent). A notebook computer today holds 16 Gbytes of memory and costs $2,500 to buy. If you assume that 100% of the price is just the memory, for both computers:

how much did 1 Kbyte of memory in the IBM computer cost?

how much does 1 Kbyte of memory in the laptop cost?

how many times cheaper is the memory in the laptop than memory in the mainframe?

what factor is todays computer cheaper than the IBM 370?