例句與造句

1. It is a Harshad number in every base from binary to decimal.
2. Not all superabundant numbers are Harshad numbers.
3. It is also a Harshad number in binary, base 11, base 13 and hexadecimal.
4. Thus 12, which is divisible by 1 + 2 = 3, is a Harshad number.
5. Because in base 10 the number 1729 is divisible by the sum of its digits, it is a Harshad number.
6. It's difficult to find harshad number in a sentence. 用harshad number造句挺難的
7. 156 is an abundant number, a pronic number, a dodecagonal number, a refactorable number and a Harshad number.
8. For a prime number to also be a harshad number, it must be less than or equal to the base number.
9. Two is a all-Harshad number, a meandric number, a semi-meandric number, and an open meandric number.
10. On the other hand, 400 is divisible by the sum of its own base 10 digits, making it a Harshad number.
11. 100 is a Harshad number in base 10, and also in base 4, and in that base it is a self-descriptive number.
12. In base 10, it is a repdigit, and because it is divisible by the sum of its digits, it is a Harshad number.
13. Given the divisibility test for 99 is not a harshad number, since 9 + 9 = 18, and 99 is not divisible by 18.
14. Much work has been done on Harshad numbers, and their distribution, frequency, etc . are a matter of considerable interest in number theory today.
15. This also shows that 102 is a Harshad number . 102 is the first 3-digit number divisible by the numbers 3, 6, 17, 34 and 51.
16. It is also a Friedman number, since 153 = 3 ?51, and a Harshad number in base 10, being divisible by the sum of its own digits.
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