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Earn +20 ptsQ: What is a perfect square if the digits sum is 4?
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What is a perfect square where the digit sum is 4?
4
How many 2 digit numbers have digits whose sum is a perfect square?
To find the two-digit numbers whose digits sum to a perfect square, we first identify the possible sums of the digits, which range from 1 (1+0) to 18 (9+9). The perfect squares in this range are 1, 4, 9, and 16. The valid two-digit combinations for these sums are: for 4 (14, 23, 32, 41, 50), for 9 (18, 27, 36, 45, 54, 63, 72, 81, 90), and for 16 (79). Counting all valid combinations gives us a total of 20 two-digit numbers.
What is your number clue 1 your number is a perfect square clue 2 the only prime number in its prime factorization is 2 clue 3 your number is a factor of 32 and clue 4 is the sum of its digits is odd?
16
How many different digits can be the units digit of an integer perfect square?
Six: 0, 1, 4, 5, 6 and 9
What two digits have a quotient of 4 and a sum of 15?
There are numbers that will meet these requirements but no such digits.
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