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Q: What even number has digits whose product is ten?

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There is no such number. If the four digits are even, the entire number is even, not odd.

The 2-digit number must be 20, because it is the only 2-digit number whose sum of its two even digits, 2 + 0 = 2, is greater than the product of its two even digits, 2 x 0 = 0. Moreover, 20 is a product of the two consecutive integers 4 and 5.

24

222

It is composite, as are all whole numbers whose last digits are even.

98

The only two digit numbers whose digits add up to 17 are 89 and 98. Since 98 is an even number, 89 is prime.

18

two

Answer 18. The two digit numbers less than 50 whose digits add to 9 are 45, 36, 27 and 18. 36 and 18 are even. 36 is the only number whose paired factor with 2 is even (18).

The greatest possible number is 888... (repeating).

4,624 = 682

754 Piece of cake!

An even number whose digits add up to 9 or a multiple of 9.

998 - 3 digits even number Next even number is 1000 - 4 digits. So 998 is the largest ...

67/72 of them.

804

86420

111111 Any 6 digit number less than that would require a 0, which is an even number.

The product is even.

1348.

18 is an even number between 12 and 29 with digits whose difference is 7. To answer this question, we start with the last part "difference is 7" and come up with a set of values that meet the need as follows: 18 29 [29 is in the set only if the question is inclusive] Now, there is only one even number in the pre-solution set and that number is 18.

28

64.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

64