7,387
141
The product of 83 and 89 is 7387
67, 71,73 and 79
80 as a product of prime numbers can be expressed as: 2x2x2x2x5
73
73
The two numbers that have a difference of 2 and a product of 80 are 10 and 8. This is because 10 - 8 = 2 and 10 × 8 = 80. Thus, these numbers satisfy both conditions.
Prime numbers between 71 to 80 = 73 and 79 Therefore there are 2 prime numbers between 71 to 80.
65
73
73
73