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If the sum of the digits of a given number equals nine or a multiple of nine, nine is a factor of that number.
The sum of the digits is also a multiple of 9. And, if the sum of the digits is too large, you can sum those digits and keep going.
you add up the digits, and if the sum is a multiple of 3, then the number is divisible by 3!
If that is the case, then three is a factor of the original number.
If the number is even, it's divisible by 2. If the sum of the digits is a multiple of 3, the whole number is divisible by 3. If the last two digits are a multiple of 4, the whole number is divisible by 4. If the last digit is a 0 or a 5, the whole number is divisible by 5. If the number is even and divisible by 3, it's divisible by 6. If the sum of the digits is a multiple of 9, the whole number is divisible by 9. If the number ends in 0, it's divisible by 10.
A number is divisible by 3 if the sum of its digits is a multiple of 3. A number is divisible by 6 if the sum of its digits is a multiple of 3 and it's even. A number is divisible by 9 if the sum of its digits is a multiple of 9.
If the sum of the digits of a given number equals nine or a multiple of nine, nine is a factor of that number.
Yes, yes, and no. 3- sum of digits must be multiple of 3. 6- sum of digits must be multiple of 3 and number must be even (multiple of 2). 9- sum of digits must be multiple of 9. (The sum of the digits here is 21.)
The sum of the digits is also a multiple of 9. And, if the sum of the digits is too large, you can sum those digits and keep going.
If the sum of the digits of a number is a multiple of 9, the number is a multiple of 9.
The number is 875 and its prime factors are 5; 5; 5 & 7.
If the sum of the digits is a multiple of three, the whole number is a multiple of three.
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The number 1111115
No factor of 9 has three digits. 450 is a three-digit multiple of 150 (and of 9) with a digit sum of 9.
1617 is not a prime number. The sum of its digits is a multiple of 3, so 3 is one of its factors. A prime number has exactly two factors, 1 and the number itself, so 1617 is a composite number.
you add up the digits, and if the sum is a multiple of 3, then the number is divisible by 3!