The first prime above 20 is 23, and then all others (29 is the next).
21 22 24 25 26 27 28
35 is higher than 20. 20 has a higher number of factors than 35.
20 trillion - 12,565,000,000,000 = 7,435,000,000,000
1
I guess this is best solved by trial and error. Try to multiply two consecutive numbers; if the product is too low, try higher number, if the product is too high, try lower numbers. For example, 20 x 21 = 420; since this is too low, your numbers are higher than that; 30 x 31 = 930; since this is too high, your numbers are lower than that.I guess this is best solved by trial and error. Try to multiply two consecutive numbers; if the product is too low, try higher number, if the product is too high, try lower numbers. For example, 20 x 21 = 420; since this is too low, your numbers are higher than that; 30 x 31 = 930; since this is too high, your numbers are lower than that.I guess this is best solved by trial and error. Try to multiply two consecutive numbers; if the product is too low, try higher number, if the product is too high, try lower numbers. For example, 20 x 21 = 420; since this is too low, your numbers are higher than that; 30 x 31 = 930; since this is too high, your numbers are lower than that.I guess this is best solved by trial and error. Try to multiply two consecutive numbers; if the product is too low, try higher number, if the product is too high, try lower numbers. For example, 20 x 21 = 420; since this is too low, your numbers are higher than that; 30 x 31 = 930; since this is too high, your numbers are lower than that.
10
10
23 and 29 are the two prime numbers greater than 20 but less than 30.
20 + 60 = 80
20 degrees is higher than 10 degrees.
20 quadrillion.