Ten draws with minimum 1, maximum 49
Calling the random integer generator ten times with the minimum set to 1 and the maximum set to 49 produced, in order, 16, 3, 28, 39, 28, 16, 11, 22, 10, 18. Every one of those ten values sits between 1 and 49, but no two consecutive calls are guaranteed to differ — 28 came up on both the third and fifth draw, and 16 came up on both the first and sixth. The bounds (1 and 49) are fixed and real for every draw; only the specific number that comes back changes each time you run it, so reproducing this exact sequence on a fresh run of the calculator is not expected.
The formula: a uniform draw between min and max
The calculator computes min + Math.random() * (max - min), then rounds to the nearest whole number since the decimal-places setting is fixed at 0 for this calculator. With min=1 and max=49, that is 1 + Math.random() * 48, which can land anywhere from just above 1 to just below 49 before rounding, giving every whole number in that span roughly equal odds of being the result. Because Math.random() returns a fresh value on every call, the formula has no memory of previous draws — each of the ten numbers above was computed completely independently of the others.
A die-roll example: ten draws with minimum 1, maximum 6
Setting the minimum to 1 and the maximum to 6 — simulating a 6-sided die — and drawing ten times produced 3, 6, 1, 6, 3, 3, 5, 3, 4, 5. With only six possible outcomes and ten rolls, repeats are the norm rather than the exception: 3 came up four times and 6 came up twice in this run. That matches what a physical die would do; a fair die rolled ten times has no obligation to show each face an equal number of times, only to give each face equal odds on every individual roll.
Why the bounds matter more than any single result
Because the actual number returned varies from call to call, the meaningful, reproducible fact about the random integer generator is not any one output but the bounds that constrain every output: set minimum to 1 and maximum to 49, and whatever comes back is guaranteed to be a whole number from 1 to 49, never 0 and never 50. That guarantee is what makes the calculator useful for picking a raffle number, simulating a die, or choosing a random item from a numbered list — the range is the real, fixed, checkable part; the specific draw is deliberately left to chance.