To calculate the number of 4-number combinations from 1 to 20, we can use the formula for combinations, which is nCr = n! / (r!(n-r)!), where n is the total number of items and r is the number of items to choose. In this case, n = 20 and r = 4. Plugging these values into the formula, we get 20C4 = 20! / (4!(20-4)!) = 4845. Therefore, there are 4845 different 4-number combinations possible from the numbers 1 to 20.
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There are infinitely many numbers with 20 factors. yes there is
An infinite number of ways.
There are 20 such cards.
20 is an even number.
55 is the middle number on a number line from 20 to 90.