5 x 5
What are the factor strings of 120
one
The factors of 25 are: 1, 5 and 25. The prime factor is 5.
Factor strings are multiplication sentences. 3 x 3 is a factor string for 9.
5
Yes.
264 - 254 = 66,351 You have 26 letters in the alphabet. Since it is a four-letter string, then the total amount of four-letter strings possible would be 26 x 26 x 26 x 26 = 264 = 456,976. If we take out the amount of strings that have the letter "x" in them, we would be left with 25 letters in the alphabet, and like above, the number of four-letter strings without the letter "x" would be 25 x 25 x 25 x 25 = 254 = 390,625. When you subtract the number of strings that do not have "x" in it to the total number of strings possible, then you would be left with the number of strings that DO have the letter "x" in them. Thus 264 - 254 = 456,976 - 390,625 = 66,351
264 - 254 = 66,351 You have 26 letters in the alphabet. Since it is a four-letter string, then the total amount of four-letter strings possible would be 26 x 26 x 26 x 26 = 264 = 456,976. If we take out the amount of strings that have the letter "x" in them, we would be left with 25 letters in the alphabet, and like above, the number of four-letter strings without the letter "x" would be 25 x 25 x 25 x 25 = 254 = 390,625. When you subtract the number of strings that do not have "x" in it to the total number of strings possible, then you would be left with the number of strings that DO have the letter "x" in them. Thus 264 - 254 = 456,976 - 390,625 = 66,351
23 is prime. No strings.
41 is prime. No strings.
1 or 25
2 x 5 x 5 = 50